一、单个controller范围的异常处理
package com.xxx.secondboot.web;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.xxx.secondboot.exception.MyExceptionResponse;
import io.swagger.annotations.Api;
@Api("测试controllerAdvice和全局异常处理")
@RestController
@RequestMapping("/advice1")
public class AdviceController {
  @RequestMapping(value = "/test1", method = RequestMethod.GET)
  public String test1() {
    throw new RuntimeException("advice1 - exception1");
  }
  @RequestMapping(value = "/test2", method = RequestMethod.GET)
  public String test2() {
    throw new RuntimeException("advice1 - exception2");
  }
  @ExceptionHandler(RuntimeException.class)
  public MyExceptionResponse exceptionHandler() {
    MyExceptionResponse resp = new MyExceptionResponse();
    resp.setCode(300);
    resp.setMsg("exception-Handler");
    return resp;
  }
}
说明:
二、全部controller范围内起作用的异常处理(全局异常处理)
1、全局异常处理类
package com.xxx.secondboot.web;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import com.xxx.secondboot.exception.MyExceptionResponse;
import com.xxx.secondboot.exception.MyRuntimeException;
//@ControllerAdvice(annotations=RestController.class)
//@ControllerAdvice(basePackages={"com.xxx","com.ooo"})
@ControllerAdvice
public class GlobalExceptionHandler {
  @ExceptionHandler(RuntimeException.class)
  //  @ExceptionHandler(value={RuntimeException.class,MyRuntimeException.class})
  //  @ExceptionHandler//处理所有异常
  @ResponseBody //在返回自定义相应类的情况下必须有,这是@ControllerAdvice注解的规定
  public MyExceptionResponse exceptionHandler(RuntimeException e, HttpServletResponse response) {
    MyExceptionResponse resp = new MyExceptionResponse();
    resp.setCode(300);
    resp.setMsg("exception-Handler");
    //    response.setStatus(600);
    return resp;
  }
}
说明:
2、controller
package com.xxx.secondboot.web;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import io.swagger.annotations.Api;
@Api("测试controllerAdvice和全局异常处理")
@RestController
@RequestMapping("/advice1")
public class AdviceController {
  @RequestMapping(value = "/test1", method = RequestMethod.GET)
  public String test1() {
    throw new RuntimeException("advice1 - exception1");
  }
  @RequestMapping(value = "/test2", method = RequestMethod.GET)
  public String test2() {
    throw new RuntimeException("advice1 - exception2");
  }
  //  @ExceptionHandler(RuntimeException.class)
  //  public MyExceptionResponse exceptionHandler() {
  //    MyExceptionResponse resp = new MyExceptionResponse();
  //    resp.setCode(300);
  //    resp.setMsg("exception-Handler");
  //    return resp;
  //  }
}
注意:
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