SpringBoot学习之全局异常处理设置（返回JSON）

import javax.servlet.http.HttpServletRequest;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

@ControllerAdvice
@ResponseBody
public class GlobalExceptionHandler {

  /**
   * 所有异常报错
   * @param request
   * @param exception
   * @return
   * @throws Exception
   */
  @ExceptionHandler(value=Exception.class) 
  public String allExceptionHandler(HttpServletRequest request, 
      Exception exception) throws Exception 
  { 
    exception.printStackTrace();
    System.out.println("我报错了："+exception.getLocalizedMessage());
    System.out.println("我报错了："+exception.getCause());
    System.out.println("我报错了："+exception.getSuppressed());
    System.out.println("我报错了："+exception.getMessage());
    System.out.println("我报错了："+exception.getStackTrace());
    return "服务器异常，请联系管理员！"; 
  } 
}

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping("/exceptionTest")
@ResponseBody
public class ExceptionTest {
  @RequestMapping("/test")
  public String test(){
    Message msg = null;
    msg.toString();
    createException();
    return "我是正常的";
  }

  private void createException(){
    int i = 5/0;
  }
}