解决SpringCloud Feign传对象参数调用失败的问题

springcloud feign传对象参数调用失败

• 不支持get请求方式
• 使用apache httpclient替换feign原生httpclient
• @requestbody接收json参数

bootstrap-local.yml

feign:
  httpclient:
    enabled: true

pom.xml

<!-- 使用apache httpclient替换feign原生httpclient -->
<dependency>
    <groupid>com.netflix.feign</groupid>
    <artifactid>feign-httpclient</artifactid>
    <version>8.18.0</version>
</dependency>
<dependency>
    <groupid>org.apache.httpcomponents</groupid>
    <artifactid>httpclient</artifactid>
    <version>4.5.3</version>
</dependency>

feignclient：

@feignclient(name = "hd-ucenter-server", fallback = systestserverfallbackimpl.class)
public interface systestserver { 
    @requestmapping(value = "/test/test", method = requestmethod.post, consumes = "application/json")
    object test(currentuser currentuser);
}

restcontroller：

@restcontroller
@postmapping("/test")
public class testcontroller {
 
    @requestmapping(value = "/test")
    public object test(@requestbody currentuser currentuser) {
        system.out.printf("调用test\n");
       return currentuser;
    }
}

springcloud中feign异常无法传递的问题

因为 cloud内部抛出异常不进行处理，feign获取spring默认包装异常结果如下：

{
"timestamp": "2017-12-27 15:01:53",
"status": 500,
"error": "internal server error",
"exception": "com.keruyun.loyalty.commons.master.exception.businessexception",
"message": "request processing failed; nested exception is {\"code\":1000, \"message\":\"test exception\"}",
"path": "/coupon/cloud/commercial/8469"
}

自定义的异常处理下返回状态

@slf4j
@restcontrolleradvice
public class globalexceptionhandlerresolver {
 
    //内部服务异常处理
    @exceptionhandler(internalapiexception.class)
    public resultresp<?> handleglobalexception(httpservletresponse response, internalapiexception internalapiexception) {
        resultresp<?> resultresp = internalapiexception.getresultresp();
        log.error(internalapiexception.getmessage(), internalapiexception);
        response.setstatus(httpstatus.internal_server_error.value());//返回500异常
        response.setcontenttype(mediatype.application_json_utf8.tostring());
        return resultresp;
    }
}

以上为个人经验，希望能给大家一个参考，也希望大家多多支持。