idea启动时候报错，无法加载到Could not resolve placeholder ‘my.userName‘ in value “${my.userName}“

最新推荐文章于 2024-01-15 22:02:32 发布
原创 最新推荐文章于 2024-01-15 22:02:32 发布 · 2.4k 阅读 · 0 ·
CC 4.0 BY-SA版权
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
文章标签：

#intellij-idea #java #maven

本文探讨了在Idea中遇到配置文件bootstrap.properties无法读取的问题，通过排查路径、pom.xml设置和Maven导入，最终解决了资源文件生成和加载的问题。
部署运行你感兴趣的模型镜像

思路：明明在nacos有配置这个参数，不应该会拿不到。代码也没有错，放在其他模块下可以运行，那为什么还会提交说找不到呢。除非是在resources下的bootstrap.properties配置文件中的配置信息没有被读取。 思路：我们知道idea编译的时候会把类和配置文件加载到target包下，打开发现确实没有bootstrap.properties这个配置文件。

在这里插入图片描述
解决：于是乎就去网上找问题为何会不生成配置文件呢？
大致的解决方法有1、看看是不是路径有没有放错，在不在resources下面，看看resouces是不是拼写错误，包类型是不行正确的，确保是Resources包。
在这里插入图片描述
2、看看pom.xml中有没有配置指定扫描文件路径
<resources> <resource> <directory>src/main/resources</directory> <filtering>true</filtering> <includes> <include>**/*.properties</include> <include>**/*.xml</include> <include>**/*.png</include> <include>**/*.ftl</include> </includes> </resource> </resources>在这里插入图片描述
3、看你的pom.xml有没有做为maven执行，蓝色的是正常的
在这里插入图片描述
下面这种就是有问题的，没有按照maven导入
在这里插入图片描述
找到下面配置选项选择maven导入就行了
在这里插入图片描述

最后：我们也可以rebuild下模块

在这里插入图片描述
可以看到配置文件成功生成
在这里插入图片描述

您可能感兴趣的与本文相关的镜像

ACE-Step

ACE-Step

音乐合成
ACE-Step

ACE-Step是由中国团队阶跃星辰（StepFun）与ACE Studio联手打造的开源音乐生成模型。 它拥有3.5B参数量，支持快速高质量生成、强可控性和易于拓展的特点。 最厉害的是，它可以生成多种语言的歌曲，包括但不限于中文、英文、日文等19种语言

如何解决 Could not resolve placeholder ‘user.userName‘ in value “${user.userName}“... 问题 | 亲测有效
**My Coding Family**
05-28 8817
解决Could not resolve placeholder 'user.userName' in value "${user.userName}"...【亲测有效】
SpringCloud升级到Finchley的一些坑
芸灵fly的博客
09-11 3738
说明 最近开始使用SpringCloud的Finchley版本，从中踩了一些坑，这里记录一下SpringCloud组件在高版本下的一些变化 快速开始 引入spring-cloud Finchley.SR1 &lt;properties&gt; &lt;project.build.sourceEncoding&gt;UTF-8&lt;/project.build.s...
IDEA Could not resolve placeholder 'jdbc_driverClassName'
qq_30063439的博客
04-27 1809
【Java基础】Idea启动Spring boot失败之Could not resolve placeholder解决全攻略
m0_66705151的博客
05-14 1万+
Spring boot项目一般会使用大量注解来注入配置，当注解解析失败无疑会直接影响项目启动。出现这种情况时应该怎么办呢？一篇文章解答所有注解注入失败的所有情况！
使用Value注解出现Could not resolve placeholder ‘email_username‘ in value “${email_username}“踩坑！！！！！
weixin_43431123的博客
01-18 4302
1.遇到的问题 做项目时,在properties配置文件中添加了一些配置，但是引入时，一直出现Could not resolve placeholder ‘XXX’ in value "${XXX}"的错误，检查了类上的注解也存在，但是就是注入不进去。 2.原因 因为spring采用的反射扫描的发现机制，也就是spring容器中只能有一个 <context:property-placeholder />标签，如果有多个这个标签，那么谁最后来的，就会替换掉原来的那个，其他的就会被忽略掉，谁在后面加
idea gradle Could not resolve placeholder
qq_26730215的博客
11-09 663
没有把包build到build，暂时直接复制进build目录下。
spring boot idea启动出现 spring boot 报错 Could not resolve placeholder ‘xxx‘ in string value “${xxx}“
weixin_41463944的博客
01-15 1881
spring boot idea启动出现 spring boot 报错 Could not resolve placeholder ‘xxx‘ in string value “${xxx}“
Could not resolve placeholder 'schinta.uploadType' in value "${schinta.uploadType}"
09-25
具体错误信息类似于：`Could not resolve placeholder 'schinta.uploadType' in value "${schinta.uploadType}"`。该问题通常发生在Spring尝试将配置文件中的属性值注入到带有`@Value`注解的字段时，但找不到对应的...
优化spring+rabbitmq配置时的问题记录
万米高空的博客
06-28 2874
这两天刚写了spring整合rabbitmq监听mq的消费端代码。但是看wiki上大牛说：“凡是在程序中指定（Hard Coding-硬编码）所链接的Hostname或者IP以及用户密码的，只能是入门学习或者测试用途，上生产时的正规用法肯定是读取配置文件。。。。。。”所以我改成用properties文件引入。按照网上一套下来，发现启动报错：java.lang.IllegelArgumentExcep
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2025-09-03 10:38:09.880 [main] ERROR org.springframework.boot.SpringApplication:860 - Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'activeMQConfig': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'spring.activemq.user' in value "${spring.activemq.user}" at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:405) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1413) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:771) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:763) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:438) at org.springframework.boot.SpringApplication.run(SpringApplication.java:339) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1329) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1318) at com.hopedove.bsd.bas.BASApplication.main(BASApplication.java:19) Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'spring.activemq.user' in value "${spring.activemq.user}" at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:180) at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:126) at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:239) at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:210) at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.lambda$processProperties$0(PropertySourcesPlaceholderConfigurer.java:175) at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:936) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1321) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:657) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ... 18 common frames omitted 2025-09-03 10:38:09.884 [Thread-2] WARN com.alibaba.nacos.common.http.HttpClientBeanHolder:108 - [HttpClientBeanHolder] Start destroying common HttpClient 2025-09-03 10:38:09.886 [Thread-2] WARN com.alibaba.nacos.common.http.HttpClientBeanHolder:114 - [HttpClientBeanHolder] Destruction of the end
09-04
Spring Boot应用启动时出现 `Could not resolve placeholder 'spring.activemq.user' in value '${spring.activemq.user}'` 错误，通常是因为Spring无法在配置文件中找到对应的属性值。以下是几种可能的解决办法： ...
G:\jdk\bin\java.exe -Dspring.application.name=ecust-custom-api-li -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-Dmanagement.endpoints.jmx.exposure.include=*" "-javaagent:G:\2025.1\IntelliJ IDEA 2025.1\lib\idea_rt.jar=56586" -Dfile.encoding=UTF-8 -classpath C:\Users\Administrator\AppData\Local\Temp\classpath458130718.jar com.ruoyi.customApi.OuchnCustomApiApplication 19:27:39.566 [background-preinit] INFO o.h.v.i.util.Version - [<clinit>,21] - HV000001: Hibernate Validator 6.2.3.Final 19:27:39.825 [main] INFO c.u.j.c.EnableEncryptablePropertiesBeanFactoryPostProcessor - [postProcessBeanFactory,40] - Post-processing PropertySource instances 19:27:39.825 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,76] - Skipping PropertySource configurationProperties [class org.springframework.boot.context.properties.source.ConfigurationPropertySourcesPropertySource 19:27:39.827 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource bootstrap [org.springframework.core.env.MapPropertySource] to EncryptableMapPropertySourceWrapper 19:27:39.827 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource systemProperties [org.springframework.core.env.PropertiesPropertySource] to EncryptableMapPropertySourceWrapper 19:27:39.827 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource systemEnvironment [org.springframework.boot.env.SystemEnvironmentPropertySourceEnvironmentPostProcessor$OriginAwareSystemEnvironmentPropertySource] to EncryptableSystemEnvironmentPropertySourceWrapper 19:27:39.828 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource random [org.springframework.boot.env.RandomValuePropertySource] to EncryptablePropertySourceWrapper 19:27:39.828 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource cachedrandom [org.springframework.cloud.util.random.CachedRandomPropertySource] to EncryptablePropertySourceWrapper 19:27:39.828 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource springCloudClientHostInfo [org.springframework.core.env.MapPropertySource] to EncryptableMapPropertySourceWrapper 19:27:39.828 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource Config resource 'class path resource [bootstrap.yml]' via location 'optional:classpath:/' [org.springframework.boot.env.OriginTrackedMapPropertySource] to EncryptableMapPropertySourceWrapper 19:27:39.854 [main] INFO c.u.j.f.DefaultLazyPropertyFilter - [lambda$new$2,31] - Property Filter custom Bean not found with name 'encryptablePropertyFilter'. Initializing Default Property Filter 19:27:39.864 [main] INFO c.u.j.r.DefaultLazyPropertyResolver - [lambda$new$2,35] - Property Resolver custom Bean not found with name 'encryptablePropertyResolver'. Initializing Default Property Resolver 19:27:39.865 [main] INFO c.u.j.d.DefaultLazyPropertyDetector - [lambda$new$2,35] - Property Detector custom Bean not found with name 'encryptablePropertyDetector'. Initializing Default Property Detector Spring Boot Version: 2.6.6 Spring Application Name: ecust-custom-api-li _ _ (_) | | _ __ _ _ ___ _ _ _ ______ ___ _ _ ___ | |_ ___ _ __ ___ | '__|| | | | / _ \ | | | || ||______|/ __|| | | |/ __|| __| / _ \| '_ ` _ \ | | | |_| || (_) || |_| || | \__ \| |_| |\__ \| |_ | __/| | | | | | |_| \__,_| \___/ \__, ||_| |___/ \__, ||___/ \__| \___||_| |_| |_| __/ | __/ | |___/ |___/ 19:27:40.172 [main] INFO c.a.n.c.r.client - [lambda$createClient$0,80] - [RpcClientFactory] create a new rpc client of 10025a0f-383b-4399-95f8-7c31d45f15a5_config-0 19:27:40.196 [main] INFO o.r.Reflections - [scan,232] - Reflections took 15 ms to scan 1 urls, producing 3 keys and 6 values 19:27:40.212 [main] INFO o.r.Reflections - [scan,232] - Reflections took 8 ms to scan 1 urls, producing 4 keys and 9 values 19:27:40.220 [main] INFO o.r.Reflections - [scan,232] - Reflections took 7 ms to scan 1 urls, producing 3 keys and 10 values 19:27:40.230 [main] INFO o.r.Reflections - [scan,232] - Reflections took 8 ms to scan 14 urls, producing 0 keys and 0 values 19:27:40.237 [main] INFO o.r.Reflections - [scan,232] - Reflections took 6 ms to scan 1 urls, producing 1 keys and 5 values 19:27:40.246 [main] INFO o.r.Reflections - [scan,232] - Reflections took 7 ms to scan 1 urls, producing 1 keys and 7 values 19:27:40.258 [main] INFO o.r.Reflections - [scan,232] - Reflections took 10 ms to scan 1 urls, producing 2 keys and 8 values 19:27:40.268 [main] INFO o.r.Reflections - [scan,232] - Reflections took 9 ms to scan 14 urls, producing 0 keys and 0 values 19:27:40.269 [main] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] RpcClient init label, labels = {module=config, Vipserver-Tag=null, source=sdk, Amory-Tag=null, Location-Tag=null, taskId=0, AppName=unknown} 19:27:40.269 [main] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] Register server push request handler:com.alibaba.nacos.client.config.impl.ClientWorker$ConfigRpcTransportClient$$Lambda$382/1412656257 19:27:40.270 [main] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] Register server push request handler:com.alibaba.nacos.client.config.impl.ClientWorker$ConfigRpcTransportClient$$Lambda$383/358019805 19:27:40.270 [main] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] Registry connection listener to current client:com.alibaba.nacos.client.config.impl.ClientWorker$ConfigRpcTransportClient$1 19:27:40.270 [main] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] RpcClient init, ServerListFactory = com.alibaba.nacos.client.config.impl.ClientWorker$ConfigRpcTransportClient$2 19:27:40.276 [main] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] Try to connect to server on start up, server: {serverIp = '124.133.23.84', server main port = 18848} 19:27:40.789 [main] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] Success to connect to server [124.133.23.84:18848] on start up, connectionId = 1751282860784_192.168.1.189_55988 19:27:40.790 [com.alibaba.nacos.client.remote.worker] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] Notify connected event to listeners. 19:27:40.790 [main] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] Register server push request handler:com.alibaba.nacos.common.remote.client.RpcClient$ConnectResetRequestHandler 19:27:40.791 [main] INFO c.a.n.c.r.client - [printIfInfoEnabled,60] - [10025a0f-383b-4399-95f8-7c31d45f15a5_config-0] Register server push request handler:com.alibaba.nacos.common.remote.client.RpcClient$$Lambda$391/193625667 19:27:40.818 [main] ERROR c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,101] - get data from Nacos error,dataId:application-dev.yml com.alibaba.nacos.api.exception.NacosException: http error, code=403,msg=authorization failed!,dataId=application-dev.yml,group=DEFAULT_GROUP,tenant=lichao at com.alibaba.nacos.client.config.impl.ClientWorker$ConfigRpcTransportClient.queryConfig(ClientWorker.java:979) at com.alibaba.nacos.client.config.impl.ClientWorker.getServerConfig(ClientWorker.java:397) at com.alibaba.nacos.client.config.NacosConfigService.getConfigInner(NacosConfigService.java:166) at com.alibaba.nacos.client.config.NacosConfigService.getConfig(NacosConfigService.java:94) at com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder.loadNacosData(NacosPropertySourceBuilder.java:85) at com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder.build(NacosPropertySourceBuilder.java:73) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadNacosPropertySource(NacosPropertySourceLocator.java:199) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadNacosDataIfPresent(NacosPropertySourceLocator.java:186) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadNacosConfiguration(NacosPropertySourceLocator.java:158) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadSharedConfiguration(NacosPropertySourceLocator.java:116) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.locate(NacosPropertySourceLocator.java:101) at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:51) at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:47) at org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:95) at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:613) at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:381) at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) at com.ruoyi.customApi.OuchnCustomApiApplication.main(OuchnCustomApiApplication.java:33) 19:27:40.823 [main] ERROR c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,101] - get data from Nacos error,dataId:ecust-custom-api com.alibaba.nacos.api.exception.NacosException: http error, code=403,msg=authorization failed!,dataId=ecust-custom-api,group=DEFAULT_GROUP,tenant=lichao at com.alibaba.nacos.client.config.impl.ClientWorker$ConfigRpcTransportClient.queryConfig(ClientWorker.java:979) at com.alibaba.nacos.client.config.impl.ClientWorker.getServerConfig(ClientWorker.java:397) at com.alibaba.nacos.client.config.NacosConfigService.getConfigInner(NacosConfigService.java:166) at com.alibaba.nacos.client.config.NacosConfigService.getConfig(NacosConfigService.java:94) at com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder.loadNacosData(NacosPropertySourceBuilder.java:85) at com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder.build(NacosPropertySourceBuilder.java:73) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadNacosPropertySource(NacosPropertySourceLocator.java:199) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadNacosDataIfPresent(NacosPropertySourceLocator.java:186) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadApplicationConfiguration(NacosPropertySourceLocator.java:141) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.locate(NacosPropertySourceLocator.java:103) at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:51) at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:47) at org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:95) at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:613) at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:381) at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) at com.ruoyi.customApi.OuchnCustomApiApplication.main(OuchnCustomApiApplication.java:33) 19:27:40.826 [main] ERROR c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,101] - get data from Nacos error,dataId:ecust-custom-api.yml com.alibaba.nacos.api.exception.NacosException: http error, code=403,msg=authorization failed!,dataId=ecust-custom-api.yml,group=DEFAULT_GROUP,tenant=lichao at com.alibaba.nacos.client.config.impl.ClientWorker$ConfigRpcTransportClient.queryConfig(ClientWorker.java:979) at com.alibaba.nacos.client.config.impl.ClientWorker.getServerConfig(ClientWorker.java:397) at com.alibaba.nacos.client.config.NacosConfigService.getConfigInner(NacosConfigService.java:166) at com.alibaba.nacos.client.config.NacosConfigService.getConfig(NacosConfigService.java:94) at com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder.loadNacosData(NacosPropertySourceBuilder.java:85) at com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder.build(NacosPropertySourceBuilder.java:73) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadNacosPropertySource(NacosPropertySourceLocator.java:199) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadNacosDataIfPresent(NacosPropertySourceLocator.java:186) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadApplicationConfiguration(NacosPropertySourceLocator.java:144) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.locate(NacosPropertySourceLocator.java:103) at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:51) at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:47) at org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:95) at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:613) at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:381) at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) at com.ruoyi.customApi.OuchnCustomApiApplication.main(OuchnCustomApiApplication.java:33) 19:27:40.830 [main] ERROR c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,101] - get data from Nacos error,dataId:ecust-custom-api-dev.yml com.alibaba.nacos.api.exception.NacosException: http error, code=403,msg=authorization failed!,dataId=ecust-custom-api-dev.yml,group=DEFAULT_GROUP,tenant=lichao at com.alibaba.nacos.client.config.impl.ClientWorker$ConfigRpcTransportClient.queryConfig(ClientWorker.java:979) at com.alibaba.nacos.client.config.impl.ClientWorker.getServerConfig(ClientWorker.java:397) at com.alibaba.nacos.client.config.NacosConfigService.getConfigInner(NacosConfigService.java:166) at com.alibaba.nacos.client.config.NacosConfigService.getConfig(NacosConfigService.java:94) at com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder.loadNacosData(NacosPropertySourceBuilder.java:85) at com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder.build(NacosPropertySourceBuilder.java:73) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadNacosPropertySource(NacosPropertySourceLocator.java:199) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadNacosDataIfPresent(NacosPropertySourceLocator.java:186) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.loadApplicationConfiguration(NacosPropertySourceLocator.java:149) at com.alibaba.cloud.nacos.client.NacosPropertySourceLocator.locate(NacosPropertySourceLocator.java:103) at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:51) at org.springframework.cloud.bootstrap.config.PropertySourceLocator.locateCollection(PropertySourceLocator.java:47) at org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration.initialize(PropertySourceBootstrapConfiguration.java:95) at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:613) at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:381) at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) at com.ruoyi.customApi.OuchnCustomApiApplication.main(OuchnCustomApiApplication.java:33) 19:27:40.833 [main] INFO c.r.c.OuchnCustomApiApplication - [logStartupProfileInfo,646] - The following 1 profile is active: "dev" 19:27:42.183 [main] INFO c.u.j.c.EnableEncryptablePropertiesBeanFactoryPostProcessor - [postProcessBeanFactory,40] - Post-processing PropertySource instances 19:27:42.183 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource bootstrapProperties-ecust-custom-api-dev.yml,DEFAULT_GROUP [org.springframework.cloud.bootstrap.config.BootstrapPropertySource] to EncryptableEnumerablePropertySourceWrapper 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource bootstrapProperties-ecust-custom-api.yml,DEFAULT_GROUP [org.springframework.cloud.bootstrap.config.BootstrapPropertySource] to EncryptableEnumerablePropertySourceWrapper 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource bootstrapProperties-ecust-custom-api,DEFAULT_GROUP [org.springframework.cloud.bootstrap.config.BootstrapPropertySource] to EncryptableEnumerablePropertySourceWrapper 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource bootstrapProperties-application-dev.yml,DEFAULT_GROUP [org.springframework.cloud.bootstrap.config.BootstrapPropertySource] to EncryptableEnumerablePropertySourceWrapper 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,76] - Skipping PropertySource configurationProperties [class org.springframework.boot.context.properties.source.ConfigurationPropertySourcesPropertySource 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,76] - Skipping PropertySource servletConfigInitParams [class org.springframework.core.env.PropertySource$StubPropertySource 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,76] - Skipping PropertySource servletContextInitParams [class org.springframework.core.env.PropertySource$StubPropertySource 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource systemProperties [org.springframework.core.env.PropertiesPropertySource] to EncryptableMapPropertySourceWrapper 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource systemEnvironment [org.springframework.boot.env.SystemEnvironmentPropertySourceEnvironmentPostProcessor$OriginAwareSystemEnvironmentPropertySource] to EncryptableSystemEnvironmentPropertySourceWrapper 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource random [org.springframework.boot.env.RandomValuePropertySource] to EncryptablePropertySourceWrapper 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource cachedrandom [org.springframework.cloud.util.random.CachedRandomPropertySource] to EncryptablePropertySourceWrapper 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource springCloudClientHostInfo [org.springframework.core.env.MapPropertySource] to EncryptableMapPropertySourceWrapper 19:27:42.184 [main] INFO c.u.j.EncryptablePropertySourceConverter - [makeEncryptable,81] - Converting PropertySource springCloudDefaultProperties [org.springframework.core.env.MapPropertySource] to EncryptableMapPropertySourceWrapper 19:27:42.263 [main] INFO i.s.s.b.a.SeataAutoConfiguration - [globalTransactionScanner,65] - Automatically configure Seata 19:27:42.263 [main] INFO c.u.j.f.DefaultLazyPropertyFilter - [lambda$new$2,31] - Property Filter custom Bean not found with name 'encryptablePropertyFilter'. Initializing Default Property Filter 19:27:42.268 [main] INFO c.u.j.r.DefaultLazyPropertyResolver - [lambda$new$2,35] - Property Resolver custom Bean not found with name 'encryptablePropertyResolver'. Initializing Default Property Resolver 19:27:42.268 [main] INFO c.u.j.d.DefaultLazyPropertyDetector - [lambda$new$2,35] - Property Detector custom Bean not found with name 'encryptablePropertyDetector'. Initializing Default Property Detector 19:27:42.299 [main] INFO i.s.c.ConfigurationFactory - [<clinit>,65] - load Configuration:FileConfiguration$$EnhancerByCGLIB$$862af1eb 19:27:42.306 [main] INFO i.s.c.ConfigurationFactory - [buildConfiguration,123] - load Configuration:FileConfiguration$$EnhancerByCGLIB$$862af1eb 19:27:42.337 [main] INFO i.s.s.a.GlobalTransactionScanner - [initClient,164] - Initializing Global Transaction Clients ... 19:27:42.372 [main] INFO i.s.c.r.n.NettyClientBootstrap - [start,147] - NettyClientBootstrap has started 19:27:42.372 [main] INFO i.s.s.a.GlobalTransactionScanner - [initClient,172] - Transaction Manager Client is initialized. applicationId[ecust-custom-api-li] txServiceGroup[ecust-custom-api-li-seata-service-group] 19:27:42.378 [main] INFO i.s.r.d.AsyncWorker - [init,125] - Async Commit Buffer Limit: 10000 19:27:42.378 [main] INFO i.s.r.d.x.ResourceManagerXA - [init,40] - ResourceManagerXA init ... 19:27:42.382 [main] INFO i.s.c.r.n.NettyClientBootstrap - [start,147] - NettyClientBootstrap has started 19:27:42.382 [main] INFO i.s.s.a.GlobalTransactionScanner - [initClient,177] - Resource Manager is initialized. applicationId[ecust-custom-api-li] txServiceGroup[ecust-custom-api-li-seata-service-group] 19:27:42.382 [main] INFO i.s.s.a.GlobalTransactionScanner - [initClient,181] - Global Transaction Clients are initialized. 19:27:42.900 [main] INFO o.a.c.c.AprLifecycleListener - [log,173] - Loaded Apache Tomcat Native library [1.3.1] using APR version [1.7.4]. 19:27:42.900 [main] INFO o.a.c.c.AprLifecycleListener - [log,173] - APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true], UDS [true]. 19:27:42.900 [main] INFO o.a.c.c.AprLifecycleListener - [log,173] - APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true] 19:27:42.904 [main] INFO o.a.c.c.AprLifecycleListener - [log,173] - OpenSSL successfully initialized [OpenSSL 3.0.14 4 Jun 2024] 19:27:42.912 [main] INFO o.a.c.h.Http11NioProtocol - [log,173] - Initializing ProtocolHandler ["http-nio-9205"] 19:27:42.913 [main] INFO o.a.c.c.StandardService - [log,173] - Starting service [Tomcat] 19:27:42.913 [main] INFO o.a.c.c.StandardEngine - [log,173] - Starting Servlet engine: [Apache Tomcat/9.0.60] 19:27:42.992 [main] INFO o.a.c.c.C.[.[.[/] - [log,173] - Initializing Spring embedded WebApplicationContext 19:27:43.146 [main] WARN o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - [refresh,591] - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redissonConfig': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'spring.redis.host' in value "${spring.redis.host}" 19:27:43.149 [main] INFO o.a.c.c.StandardService - [log,173] - Stopping service [Tomcat] 19:27:43.185 [main] ERROR o.s.b.SpringApplication - [reportFailure,830] - Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redissonConfig': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'spring.redis.host' in value "${spring.redis.host}" at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:405) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) at com.ruoyi.customApi.OuchnCustomApiApplication.main(OuchnCustomApiApplication.java:33) Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'spring.redis.host' in value "${spring.redis.host}" at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:180) at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:126) at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:239) at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:210) at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.lambda$processProperties$0(PropertySourcesPlaceholderConfigurer.java:191) at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:936) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1330) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:656) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ... 17 common frames omitted 19:27:43.186 [Thread-4] WARN c.a.n.c.h.HttpClientBeanHolder - [shutdown,108] - [HttpClientBeanHolder] Start destroying common HttpClient 19:27:43.186 [Thread-11] WARN c.a.n.c.n.NotifyCenter - [shutdown,136] - [NotifyCenter] Start destroying Publisher 19:27:43.186 [Thread-11] WARN c.a.n.c.n.NotifyCenter - [shutdown,153] - [NotifyCenter] Destruction of the end 19:27:43.186 [Thread-4] WARN c.a.n.c.h.HttpClientBeanHolder - [shutdown,114] - [HttpClientBeanHolder] Destruction of the end
07-01
```logCaused by: java.lang.IllegalArgumentException:Could notresolve placeholder'spring.redis.host' invalue "${spring.redis.host}"``` 这表明应用在解析Redis配置时失败，因为配置源中不存在`spring.redis....
Spring中报"Could not resolve placeholder"的解决方案
热门推荐
linwei_1029的专栏
10-14 11万+
除去properites文件路径错误、拼写错误外，出现"Could not resolve placeholder"很有可能是使用了多个PropertyPlaceholderConfigurer或者多个的原因。   　　比如我有一个dao.xml读取dbConnect
Could not resolve placeholder ‘xxx‘ in value “${xxx}
生而为人我很抱歉
06-07 4398
2.选中Idea右侧Profiles，然后Reload All Maven Projects。3.选中Idea右侧项目(root)，然后Reload All Maven Projects。1.检测spring.profiles.active确实没有弄错。2.查看编译后的jar里的配置文件，也确实有xxx，但就是。1.选中最顶层项目，然后Rebuild Project。因为新增了一个profiles，没有主动清理并刷新。4.选中Idea右侧项目(root)，然后clean。
解决spring cloud nacos中出现Could not resolve placeholder ‘name‘ in value “${name}“
weixin_57404336的博客
04-18 6720
嵌套异常为java.lang.IllegalArgumentException：无法解析值“$｛name｝”中的占位符“name”引起原因：java.lang.IllegalArgumentException：无法解析值“$｛name｝”中的占位符“name”第二处的file-extension即创建nacos新建配置的配置格式。第一处的name即刚刚自己nacos新建配置的DateID。第三处的group创建nacos新建配置的Group。我新建项目添加的Dependencies如下。
Could not resolve placeholder ‘xxx‘ in value “${xxx}“
正怒月神的博客
06-15 2333
报错：Could not resolve placeholder 'xxx' in value "${xxx}" 使用了网上的解决方案，一直没解决。 我知道，肯定是某个包有问题。或者说版本冲突。 先看一下我spring版本： <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent&lt.
springboot 启动报错Could not resolve placeholder ‘xxx‘ in value “${xxx}“
2301_78137230的博客
11-04 1386
Value("${ww.mapper-locations}")的名称有误，应该改成tt.mapper-locations。发现配置文件，application.yaml 的定义是这样的。运行application之后，报错。
idea报错：Couldnot resolve symbol “xxx”
weixin_43729563的博客
10-23 1617
刚要开始项目，打开之前做过的ssm框架项目，idea全是红色小波浪！！！ 搞了一天也没有恢复，试了网上的很多方法： 第一种：查看idea中的maven位置配置是否正确，修改成你自己配置的maven，然后clean一下，在install，之后重启idea，右键pom.xml -> maven->reimport，之后就可以使用依赖了 第二种：file->invalidate,之...
代码无误的情况下IDEA出现Could not resolve placeholder ‘xxx‘ in value “${xxx}“
太阳晒屁股了的博客
01-26 1811
点击工具右侧Maven，选择Lifecycle，依次clean install即可。同理，可以在终端Terminal中mvn clean install 完
解决 Could not resolve placeholder ‘xxx‘ in string value “${xxx}“
wzw的博客
10-14 1万+
这个其实也算是个小问题，就是拿来记录一下。 原文地址：https://blog.csdn.net/u012198209/article/details/88965922 一般来说报Could not resolve placeholder ‘xxx’ in string value “${xxx}” 错误的原因都是由于项目中有多个地方的xml文件中用到了 <context:property-placeholder location=“classpath:xxx.properties”/> 或者是
Could not resolve placeholder sp.sale in value ${sp.sale}
最新发布
10-22
<think>首先，用户的问题是：如何解决 'Could not resolve placeholder sp.sale in value ${sp.sale}' 的问题。这是一个Spring框架的错误，表示无法解析属性占位符。 接下来，查看用户提供的引用内容： - 引用[1]: 描述了一个类似的错误：IllegalArgumentException: Could not resolve placeholder ‘from’ in value “${from}”。错误堆栈显示在创建bean时发生问题。 - 引用[2]: 提到错误原因：当导入多个properties文件时发生冲突。解决方法包括：将文件导入写到一个配置中用逗号隔开，或在使用多个property-placeholder时添加ignore-unresolvable="true"。 - 引用[3]: 这是一个Android Studio的错误，与SDK Build Tools版本有关，不相关。 - 引用[4]: 描述@Value读取配置文件报错Could not resolve placeholder 'rabbitmq.host'。解决思路包括检查依赖、检查属性路径是否正确（如添加完整路径spring.rabbitmq.host）。 用户的问题集中在 'sp.sale' 占位符无法解析，我需要基于这些引用提供一个解决方案。关键是参考引用[2]和[4]，因为它们直接相关。 系统级指令： - 所有行内数学表达式使用$...$格式：但这个问题不涉及数学表达式，所以可能不需要。 - 独立公式使用$$...$$格式：同样不适用。 - LaTeX语法正确：确保任何代码或格式正确。 - 使用中文回答：整个响应必须用中文。 - 生成相关问题：在回答后，添加相关问题部分。 - 引用标识：在引用的内容末尾添加引用标识，如[^1]。 用户的上一次问题是我的当前响应中提到的，但在这个上下文中，我需要基于用户的问题回复。 结构化回答： 1. **解释错误原因**：简要说明错误的原因，即Spring无法找到属性文件中的'sp.sale'属性。 2. **提供解决方法**：基于引用： - 检查属性文件：确保属性文件包含'sp.sale'。 - 检查属性路径：使用完整前缀，如引用[4]建议的添加spring前缀。 - 多个属性文件问题：如引用[2]提到的，如果使用多个property-placeholder，添加ignore-unresolvable="true"或合并导入。 - 检查依赖和配置：确保配置正确加载属性文件。 3. **代码示例**：如果需要，提供XML或Java配置示例。 4. **相关问题部分**：添加几个相关问题。 确保回答结构清晰，一步一步帮助用户解决问题。 大纲： - 引言：确认错误并解释。 - 步骤1：检查属性文件中是否有'sp.sale'属性。 - 步骤2：确保属性文件被正确加载。 - 步骤3：检查属性占位符配置。 - 步骤4：如果是多个文件，应用ignore-unresolvable。 - 结论：总结关键点。 - 相关问题。 相关问题想法： 1. 如何配置Spring以加载多个属性文件？ 2. 什么是Spring属性占位符的最佳实践？ 3. 如何处理Spring中的属性注入错误？ 用中文写回答。 </think>### 解决 'Could not resolve placeholder sp.sale in value ${sp.sale}' 错误的方法 这个错误主要发生在Spring框架中，当你使用属性占位符（如`@Value("${sp.sale}")`）时，Spring无法从属性文件中解析指定的属性值（这里是`sp.sale`）。常见原因包括属性文件未正确加载、属性名称拼写错误、配置冲突或路径问题。基于您提供的引用内容（特别是[^2]和[^4]），我将逐步解释解决方案。请确保使用JDK 8+和Spring 4.x+版本（推荐Spring Boot 2.x或更高）。 #### 步骤1: 检查属性文件是否包含 `sp.sale` 属性 首先，确认你的属性文件（如`application.properties`或`application.yml`）中定义了`sp.sale`属性。如果文件路径或名称错误，Spring无法读取。 - **示例属性文件内容** (在`src/main/resources/application.properties`中): ``` # 确保属性名正确，且值不为空 sp.sale=true ``` - 如果使用YAML格式（`application.yml`）: ```yaml sp: sale: true ``` 引用[^4]强调了属性路径的重要性：确保在代码中引用时使用完整路径，例如`@Value("${sp.sale}")`而不是错误缩写。如果属性文件未包含此键值对，Spring会抛出异常。 #### 步骤2: 确保属性文件被正确加载 Spring需要在配置中显式加载属性文件。检查你的配置类或XML文件是否正确定义了property-source。 - **使用Java配置（推荐Spring Boot）**: 在配置类中添加`@PropertySource`注解： ```java @Configuration @PropertySource("classpath:application.properties") // 确保文件路径正确 public class AppConfig { // 配置其他bean } ``` - **使用XML配置**: 在`applicationContext.xml`中添加： ```xml <context:property-placeholder location="classpath:application.properties" /> ``` 如果在多个文件中有属性（如`db.properties`和`mail.properties`），引用[^2]建议合并导入或添加`ignore-unresolvable="true"`来避免冲突： ```xml <!-- 方法1: 合并多个文件，用逗号分隔 --> <context:property-placeholder location="classpath:application.properties, classpath:other.properties" /> <!-- 方法2: 为每个文件单独配置并忽略未解析占位符 --> <context:property-placeholder location="classpath:application.properties" ignore-unresolvable="true" /> <context:property-placeholder location="classpath:other.properties" ignore-unresolvable="true" /> ``` 这能防止多个property-placeholder竞争导致的解析失败[^2]。 #### 步骤3: 检查属性注入点和依赖 确保在代码中注入属性时没有错误： - **修正注解使用**：在Spring bean中，使用`@Value`注入属性： ```java @Component public class SaleService { @Value("${sp.sale}") // 确保$符号和属性名正确 private boolean isSaleActive; // 其他方法 } ``` - **验证依赖**：引用[^4]提到属性注入失败可能与依赖缺失相关。检查`pom.xml`（Maven）或`build.gradle`（Gradle）是否包含Spring Boot Starter或Cloud Config依赖（如果使用分布式配置）： ```xml <!-- Maven 示例 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> ``` 如果属性来自外部服务（如Spring Cloud Config），引用[^4]强调需检查配置路径完整性和空格：确保属性键为`sp.sale`，而不是错误如`sp. sale`。 #### 步骤4: 调试和常见修复 - **启用调试日志**：在`application.properties`中添加： ``` logging.level.org.springframework=DEBUG ``` 这会输出详细的加载日志，帮助定位文件加载失败原因。 - **检查Spring Boot配置**：如果在Spring Boot应用中，默认加载`application.properties`，无需额外配置。但如果有自定义文件，需通过`@PropertySource`指定。 - **处理环境变量**：如果你的属性被环境变量覆盖，确保系统中没有冲突的变量名。 - **重启应用**：修改配置后，重新启动Spring应用。 #### 总结关键点 - **常见原因**: 属性文件未加载、路径错误、多个配置冲突或属性名拼写问题。 - **快速修复**: 优先检查属性文件内容和加载配置；若多文件共存，使用`ignore-unresolvable="true"`。 - **预防措施**: 使用Spring Boot的自动配置简化过程，或统一管理属性文件。 如果问题依旧，请提供更多上下文（如完整代码片段或日志），以便进一步分析。参考内容基于Spring 4.x+行为[^2][^4]。
评论
添加红包

请填写红包祝福语或标题

个

红包个数最小为10个

元

红包金额最低5元

当前余额3.43元 前往充值 >
需支付：10.00元
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付元
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明：

1.余额是钱包充值的虚拟货币，按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载，可以购买VIP、付费专栏及课程。

余额充值