feign客户端传参数报错 Caused by: java.lang.IllegalStateException: Method has too many Body parameters

时间 2019-12-07

标签 feign 客户端参数报错 caused java.lang.illegalstateexception java lang illegalstateexception method body parameters 栏目 Java 繁體版

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新手常常遇到的错误html

Caused by: java.lang.IllegalStateException: Method has too many Body parameters

feign多参数问题
1.1GET方式
错误写法java

@RequestMapping(value="/test", method=RequestMethod.GET)spring

Model test(final String name, final int age);springboot

启动服务的时候，会报以下异常：restful

Caused by: java.lang.IllegalStateException: Method has too many Body parameters: public abstract com.chhliu.springboot.restful.vo.User com.chhliu.springboot.restful.feignclient.UserFeignClient.findByUsername(java.lang.String,java.lang.String)app

异常缘由：当使用Feign时，若是发送的是get请求，那么须要在请求参数前加上@RequestParam注解修饰，Controller里面能够不加该注解修饰。post

正确写法url

@RequestMapping(value="/test", method=RequestMethod.GET)rest

Model test(@RequestParam("name") final String name,@RequestParam("age") final int age);htm

1.1POST方式
错误写法

public int save(@RequestBody final Person p, @RequestBody final UserModel user);

feign中你能够有多个@RequestParam，但只能有不超过一个@RequestBody。

正确写法

public int save(@RequestBody final Person p,@RequestParam("userId") String userId,@RequestParam("userTel") String userTel);