springboot 九-响应结果
2022-02-18 本文已影响0人
小眼睛的露鹿酱
统一响应大对象
resultCode ： 1成功 0失败
message ：提示信息
data：json文件
响应data 状态码 message
涉及信息包括
响应数据data
package com.example.questionlist2.common;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import java.io.Serializable;
@Data
public class resultDto<T> implements Serializable {
@ApiModelProperty(value = "响应Code，其中1表示成功 0表示失败",required = true,example = "1",allowableValues = "0")
private Integer resultCode;
@ApiModelProperty(value ="响应信息")
private String message="";
@ApiModelProperty(value = "响应数据")
private T data=null;
public static resultDto newResultDto(){
return new resultDto();
}
//状态为成功 重载 函数name一致 但是参数不一样 调用的时候会区别的
public static resultDto sucess(String msg){
resultDto resultDto =new resultDto();
resultDto.setMessage(msg);
resultDto.setResultCode(1);
return resultDto;
}
public static <T> resultDto<T> sucess(String msg,T t){
// <T> resultDto<T> 正确的返回
// resultDto<T> 报错
resultDto<T> resultDto = new resultDto<>();
resultDto.setResultCode(1);
resultDto.setMessage(msg);
resultDto.setData(t);
return resultDto;
}
//状态为失败 重载 函数name一致 但是参数不一样 调用的时候会区别的
public static resultDto fail(String msg){
resultDto resultDto =new resultDto();
resultDto.setMessage(msg);
resultDto.setResultCode(0);
return resultDto;
}
public static <T> resultDto<T> fail (String msg,T t){
// <T> resultDto<T> 正确的返回
// resultDto<T> 报错
resultDto<T> resultDto = new resultDto<>();
resultDto.setResultCode(1);
resultDto.setMessage(msg);
resultDto.setData(t);
return resultDto;
}
}
调用接口如下
@PostMapping(value = "addQuestionResult")
public resultDto addQuestionResult(@RequestBody questionDto questionDto) {
if (questionDto.getQuestionName().contains(" ")) {
myException.throwMyEx("questionName is not correct");
}
//现在去直接抛出异常
if (questionDto.getQuestionName().contains("errorNULL")) {
myException demo = new myException("包含null", new NullPointerException());
}
System.out.println(questionDto.getQuestionName() + " " + questionDto.getBook());
return resultDto.sucess("post over\n"
+questionDto.getQuestionName() +"\n"
+questionDto.getQuestionType());
}
postman
图片.png
由于没有上传具体的Dto对象 所以data 为null
@PostMapping(value = "addQuestionResult")
public resultDto addQuestionResult(@RequestBody questionDto questionDto) {
if (questionDto.getQuestionName().contains(" ")) {
myException.throwMyEx("questionName is not correct");
}
//现在去直接抛出异常
if (questionDto.getQuestionName().contains("errorNULL")) {
myException demo = new myException("包含null", new NullPointerException());
}
System.out.println(questionDto.getQuestionName() + " " + questionDto.getBook());
// return resultDto.sucess("post over\n"
// +questionDto.getQuestionName() +"\n"
// +questionDto.getQuestionType());
return resultDto.sucess("post over",questionDto);
}
postman 结果
图片.png
此时考虑到正常的接口响应是resultDto 那异常的时候就可以不像之前那样打印信息了， 可以也返回一个json文件
package com.example.questionlist2.common;
import org.springframework.http.HttpStatus;
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.ResponseStatus;
@ControllerAdvice //标识这个类是一个全局异常处理的类 定义在类上
@ResponseBody //在相应体中使用
public class myglobalExceptionHandle {
//异常分为：业务异常和其他异常
//业务异常
@ExceptionHandler({myException.class})
//统一处理value对应的异常,
// 如果这个类的子类和父类都被声明时 先子后父的顺序捕获
@ResponseStatus(value = HttpStatus.BAD_REQUEST)
public resultDto serviceExphandle(myException myException){
return commontip(myException);
}
//其他异常
@ResponseStatus(value=HttpStatus.BAD_GATEWAY)
@ExceptionHandler({Exception.class})
public resultDto othersExphandle(Exception e){
return commontip(e);
}
//系统异常
@ResponseStatus(HttpStatus.SERVICE_UNAVAILABLE)
@ExceptionHandler({Throwable.class})
public resultDto systemExphandle(Throwable t){
return commontip( t);
}
//发现 return的结果可以再放入一个函数中
public resultDto commontip(Throwable t){
String tip="请稍后查看具体原因";
if (t instanceof myException){
return resultDto.fail(t.getMessage()+": 业务异常",t);
}
if (t instanceof Exception){
return resultDto.fail(t.getMessage()+": 其他异常",t);
}
if (t instanceof Throwable){
return resultDto.fail(t.getMessage()+": 系统异常",t);
}
return resultDto.sucess("no Exception");
}
}
请求 http://localhost:8888/addQuestionResult
{
"questionType":"questionType1",
"keyword":"keyword1",
"questionName":"dedede. ",
"dependOnQuestion":"dependOnQuestion2",
"book":"book1"
}
此时的结果竟然是
{
"resultCode": 1,
"message": "questionName is not correct: 业务异常",
"data": {
"cause": null,
"stackTrace": [
{
"methodName": "throwMyEx",
"fileName": "myException.java",
"lineNumber": 40,
"className": "com.example.questionlist2.common.myException",
"nativeMethod": false
},
{
"methodName": "addQuestionResult",
"fileName": "getListController.java",
"lineNumber": 106,
"className": "com.example.questionlist2.cotroller.getListController",
"nativeMethod": false
},
{
"methodName": "invoke0",
"fileName": "NativeMethodAccessorImpl.java",
"lineNumber": -2,
"className": "sun.reflect.NativeMethodAccessorImpl",
"nativeMethod": true
},
{
"methodName": "invoke",
"fileName": "NativeMethodAccessorImpl.java",
"lineNumber": 62,
"className": "sun.reflect.NativeMethodAccessorImpl",
"nativeMethod": false
},
{
"methodName": "invoke",
"fileName": "DelegatingMethodAccessorImpl.java",
"lineNumber": 43,
"className": "sun.reflect.DelegatingMethodAccessorImpl",
"nativeMethod": false
},
{
"methodName": "invoke",
"fileName": "Method.java",
"lineNumber": 498,
"className": "java.lang.reflect.Method",
"nativeMethod": false
},
{
"methodName": "doInvoke",
"fileName": "InvocableHandlerMethod.java",
"lineNumber": 205,
"className": "org.springframework.web.method.support.InvocableHandlerMethod",
"nativeMethod": false
},
{
"methodName": "invokeForRequest",
"fileName": "InvocableHandlerMethod.java",
"lineNumber": 150,
"className": "org.springframework.web.method.support.InvocableHandlerMethod",
"nativeMethod": false
},
{
"methodName": "invokeAndHandle",
"fileName": "ServletInvocableHandlerMethod.java",
"lineNumber": 117,
"className": "org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod",
"nativeMethod": false
},
{
"methodName": "invokeHandlerMethod",
"fileName": "RequestMappingHandlerAdapter.java",
"lineNumber": 895,
"className": "org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter",
"nativeMethod": false
},
{
"methodName": "handleInternal",
"fileName": "RequestMappingHandlerAdapter.java",
"lineNumber": 808,
"className": "org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter",
"nativeMethod": false
},
{
"methodName": "handle",
"fileName": "AbstractHandlerMethodAdapter.java",
"lineNumber": 87,
"className": "org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter",
"nativeMethod": false
},
{
"methodName": "doDispatch",
"fileName": "DispatcherServlet.java",
"lineNumber": 1067,
"className": "org.springframework.web.servlet.DispatcherServlet",
"nativeMethod": false
},
{
"methodName": "doService",
"fileName": "DispatcherServlet.java",
"lineNumber": 963,
"className": "org.springframework.web.servlet.DispatcherServlet",
"nativeMethod": false
},
{
"methodName": "processRequest",
"fileName": "FrameworkServlet.java",
"lineNumber": 1006,
"className": "org.springframework.web.servlet.FrameworkServlet",
"nativeMethod": false
},
{
"methodName": "doPost",
"fileName": "FrameworkServlet.java",
"lineNumber": 909,
"className": "org.springframework.web.servlet.FrameworkServlet",
"nativeMethod": false
},
{
"methodName": "service",
"fileName": "HttpServlet.java",
"lineNumber": 681,
"className": "javax.servlet.http.HttpServlet",
"nativeMethod": false
},
{
"methodName": "service",
"fileName": "FrameworkServlet.java",
"lineNumber": 883,
"className": "org.springframework.web.servlet.FrameworkServlet",
"nativeMethod": false
},
{
"methodName": "service",
"fileName": "HttpServlet.java",
"lineNumber": 764,
"className": "javax.servlet.http.HttpServlet",
"nativeMethod": false
},
{
"methodName": "internalDoFilter",
"fileName": "ApplicationFilterChain.java",
"lineNumber": 227,
"className": "org.apache.catalina.core.ApplicationFilterChain",
"nativeMethod": false
},
{
"methodName": "doFilter",
"fileName": "ApplicationFilterChain.java",
"lineNumber": 162,
"className": "org.apache.catalina.core.ApplicationFilterChain",
"nativeMethod": false
},
{
"methodName": "doFilter",
"fileName": "WsFilter.java",
"lineNumber": 53,
"className": "org.apache.tomcat.websocket.server.WsFilter",
"nativeMethod": false
},
{
"methodName": "internalDoFilter",
"fileName": "ApplicationFilterChain.java",
"lineNumber": 189,
"className": "org.apache.catalina.core.ApplicationFilterChain",
"nativeMethod": false
},
{
"methodName": "doFilter",
"fileName": "ApplicationFilterChain.java",
"lineNumber": 162,
"className": "org.apache.catalina.core.ApplicationFilterChain",
"nativeMethod": false
},
{
"methodName": "doFilterInternal",
"fileName": "CharacterEncodingFilter.java",
"lineNumber": 201,
"className": "org.springframework.web.filter.CharacterEncodingFilter",
"nativeMethod": false
},
{
"methodName": "doFilter",
"fileName": "OncePerRequestFilter.java",
"lineNumber": 117,
"className": "org.springframework.web.filter.OncePerRequestFilter",
"nativeMethod": false
},
{
"methodName": "internalDoFilter",
"fileName": "ApplicationFilterChain.java",
"lineNumber": 189,
"className": "org.apache.catalina.core.ApplicationFilterChain",
"nativeMethod": false
},
{
"methodName": "doFilter",
"fileName": "ApplicationFilterChain.java",
"lineNumber": 162,
"className": "org.apache.catalina.core.ApplicationFilterChain",
"nativeMethod": false
},
{
"methodName": "invoke",
"fileName": "StandardWrapperValve.java",
"lineNumber": 197,
"className": "org.apache.catalina.core.StandardWrapperValve",
"nativeMethod": false
},
{
"methodName": "invoke",
"fileName": "StandardContextValve.java",
"lineNumber": 97,
"className": "org.apache.catalina.core.StandardContextValve",
"nativeMethod": false
},
{
"methodName": "invoke",
"fileName": "AuthenticatorBase.java",
"lineNumber": 540,
"className": "org.apache.catalina.authenticator.AuthenticatorBase",
"nativeMethod": false
},
{
"methodName": "invoke",
"fileName": "StandardHostValve.java",
"lineNumber": 135,
"className": "org.apache.catalina.core.StandardHostValve",
"nativeMethod": false
},
{
"methodName": "invoke",
"fileName": "ErrorReportValve.java",
"lineNumber": 92,
"className": "org.apache.catalina.valves.ErrorReportValve",
"nativeMethod": false
},
{
"methodName": "invoke",
"fileName": "StandardEngineValve.java",
"lineNumber": 78,
"className": "org.apache.catalina.core.StandardEngineValve",
"nativeMethod": false
},
{
"methodName": "service",
"fileName": "CoyoteAdapter.java",
"lineNumber": 357,
"className": "org.apache.catalina.connector.CoyoteAdapter",
"nativeMethod": false
},
{
"methodName": "service",
"fileName": "Http11Processor.java",
"lineNumber": 382,
"className": "org.apache.coyote.http11.Http11Processor",
"nativeMethod": false
},
{
"methodName": "process",
"fileName": "AbstractProcessorLight.java",
"lineNumber": 65,
"className": "org.apache.coyote.AbstractProcessorLight",
"nativeMethod": false
},
{
"methodName": "process",
"fileName": "AbstractProtocol.java",
"lineNumber": 895,
"className": "org.apache.coyote.AbstractProtocol$ConnectionHandler",
"nativeMethod": false
},
{
"methodName": "doRun",
"fileName": "NioEndpoint.java",
"lineNumber": 1732,
"className": "org.apache.tomcat.util.net.NioEndpoint$SocketProcessor",
"nativeMethod": false
},
{
"methodName": "run",
"fileName": "SocketProcessorBase.java",
"lineNumber": 49,
"className": "org.apache.tomcat.util.net.SocketProcessorBase",
"nativeMethod": false
},
{
"methodName": "runWorker",
"fileName": "ThreadPoolExecutor.java",
"lineNumber": 1191,
"className": "org.apache.tomcat.util.threads.ThreadPoolExecutor",
"nativeMethod": false
},
{
"methodName": "run",
"fileName": "ThreadPoolExecutor.java",
"lineNumber": 659,
"className": "org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker",
"nativeMethod": false
},
{
"methodName": "run",
"fileName": "TaskThread.java",
"lineNumber": 61,
"className": "org.apache.tomcat.util.threads.TaskThread$WrappingRunnable",
"nativeMethod": false
},
{
"methodName": "run",
"fileName": "Thread.java",
"lineNumber": 748,
"className": "java.lang.Thread",
"nativeMethod": false
}
],
"message": "questionName is not correct",
"localizedMessage": "questionName is not correct",
"suppressed": []
}
}
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