java.lang.IllegalStateException: PathVariable annotation was empty on param 0-2021-09-28

最新推荐文章于 2023-05-18 17:33:13 发布
原创 最新推荐文章于 2023-05-18 17:33:13 发布 · 317 阅读 · 0 ·
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商城项目开发中遇到Day10购物车接口调用问题，主要表现为UnsatisfiedDependencyException，原因是SkuFeign工厂bean创建时PathVariable注解的参数为空。解决方案在于修正返回Result<Sku>集合时的路径变量注解，确保其不为空，从而避免此类异常的发生。

商城项目day10 购物车:

 1.报错如下: UnsatisfiedDependencyException: 

        Unsatisfied dependency expressed through field 'cartService'; nested exception is 

        Error creating bean with name 'com.changgou.goods.feign.SkuFeign': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: PathVariable annotation was empty on param 0.

2.原因:  路径变量注解的参数为空

 3. 解决:  返回的Result<Sku>的集合

 

java.lang.IllegalStateException: PathVariable annotation was empty on param 0.
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【错误解决】java.lang.IllegalStateException: PathVariable annotation was empty on param 0.
DicoY的博客
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qq_42922325的博客
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Spring Cloud Feign 报错 FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: PathVariable annotation was empty on param 0. 发生异常的代码如下： 异常翻译： FactoryBean在创建对象时引发异常；嵌套异常为java.lang.IllegalStateException:参数0上的Pat
Caused by: java.lang.IllegalStateException: PathVariable annotation was empty on param 0. at feign.Util.checkState(Util.java:118)
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在使用 Feign 时，出现 `java.lang.IllegalStateException: PathVariable annotation was empty on param 0` 异常，通常与 `@PathVariable` 注解的使用方式或编译环境配置有关。以下是问题的常见原因及对应的解决...
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This exception occurs when using the PathVariable annotation in a Spring MVC controller method parameter and the annotation value is empty. The PathVariable annotation is used to map a part of the URL...
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最新发布
09-09
当在使用Spring的`@RequestMapping`和`@PathVariable`注解时出现`java.lang.IllegalStateException: PathVariable annotation was empty on param 0`错误，意味着路径参数未正确绑定到方法参数上，可通过以下方法...
java.lang.IllegalStateException: PathVariable annotation was empty on param 0
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Caused by: java.lang.IllegalStateException: PathVariable annotation was empty on param 0.
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SuperstarSteven的博客
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这个异常是我在启动Spring项目时遇到的，然后报这个异常导致项目启动不起来，解决方法： 在@PathVariable这个注解后面加上value值。 这个是我报异常的代码: @GetMapping("/user/{id}") CommonResult<User> getUser(@PathVariable Long id); 这个是修改后的代码 @GetMapping("/user/{id}") CommonResult<User> getUser(
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出现这个问题：java.lang.IllegalStateException: PathVariable annotation was empty on param 0.
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刚开始出现：The web application [ROOT] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: java.lang.Object.wait(Native Method) java.lang.re..
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qq_30637341的博客
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问题没截图，主要看到java.lang.IllegalStateException: PathVariable annotation was empty on param 0.....最后找到问题: @PathVariable注解 了解一下@PathVariable注解！1.@PathVariable绑定URI模板变量值2.@PathVariable是用来获得请求url中的动态参数的3.@PathVariable用于将请求URL中的模板变量映射到功能处理方法的参数上。 * *@Pathvariab
java.lang.IllegalStateException: PathVariable annotation was empty on param 0异常解决方法
zhanxiaozhangA的博客
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问题描述 博主今天用SpringCloud通过Feign接口调用远程微服务的时候出现了一个这样的异常,这里作一些记录(如下图) 解决方法 博主查阅了一些相关资料发现 使用Feign接口调用远程服务的方法时@PathVariable注解必须明确指定参数名，不然会抛出异常 至此 问题解决 ...
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java_Murcielago的博客
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value必须指定 @PathVariable(value="id")
PathVariable annotation was empty on param 0..及@PathVariable编译后的.class文件参数名变为var1的解决办法
SHEILD1999的博客
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报错：java.lang.IllegalStateException: PathVariable annotation was empty on param 0.及@PathVariable编译后的.class文件参数名变为var1的解决办法
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