nacos 遇到的问题

最新推荐文章于 2025-01-13 11:24:38 发布

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最新推荐文章于 2025-01-13 11:24:38 发布

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分类专栏： nacos 启动报错文章标签： java

本文链接：https://blog.youkuaiyun.com/u014738571/article/details/119182711

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项目启动时遇到Nacos数据加载错误，源于YAML解析异常，具体为`MalformedInputException`，提示字符集不一致或配置文件格式问题。解决方法包括检查配置文件格式，特别是冒号后的空格，确保文件编码为UTF-8，以及在服务器启动时指定`-Dfile.encoding=utf-8`参数。

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项目启动，错误如下

ERROR c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,104] - parse data from Nacos error,dataId:application-dev.yml,data:spring:
xxxx..
org.yaml.snakeyaml.error.YAMLException: java.nio.charset.MalformedInputException: Input length = 1
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:218)
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:176)
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:171)
	at org.yaml.snakeyaml.reader.StreamReader.peek(StreamReader.java:126)
	at org.yaml.snakeyaml.scanner.ScannerImpl.scanToNextToken(ScannerImpl.java:1198)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:308)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:248)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseImplicitDocumentStart.produce(ParserImpl.java:213)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:165)
	at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:155)
	at org.yaml.snakeyaml.composer.Composer.checkNode(Composer.java:93)
	at org.yaml.snakeyaml.constructor.BaseConstructor.checkData(BaseConstructor.java:124)
	at org.yaml.snakeyaml.Yaml$1.hasNext(Yaml.java:507)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:198)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:166)
	at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:84)
	at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50)
	at com.alibaba.cloud.nacos.parser.NacosDataParserHandler.parseNacosData(NacosDataParserHandler.java:92)
	at com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder.loadNacosData(NacosPropertySourceBuilder.java:97)
	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:634)
	at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:403)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:337)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1332)
	at com.ruoyi.system.RuoYiSystemApplication.main(RuoYiSystemApplication.java:22)
Caused by: java.nio.charset.MalformedInputException: Input length = 1
	at java.base/java.nio.charset.CoderResult.throwException(CoderResult.java:274)
	at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
	at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
	at java.base/java.io.InputStreamReader.read(InputStreamReader.java:185)
	at org.yaml.snakeyaml.reader.UnicodeReader.read(UnicodeReader.java:125)
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:183)
	... 33 common frames omitted

原因分析

sun.nio.cs.StreamDecoder 解码失败导致。
所以根本问题是字符集不一致，或者yml等配置文件格式问题。
本地开发：
开发环境就要确定是配置文件格式问题还是编码问题。
文件格式：需要检查冒号":"后面是否有空格。或者其他格式问题
编码问题：检查环境的编码，包括nacos环境本地环境（最重要的本地配置yml文件）都设置成utf8
生产部署：
如果是本地都正常，部署不正常，问题肯定出在服务器的编码上。可增加启动参数
-Dfile.encoding=utf-8