Design and implementation of response standard in 12 springboot project

Zhongkai 2020-11-11 09:19:55
design implementation response standard springboot


12-SpringBoot Design and implementation of response standard in engineering

springboot

Published on 10 month 12 Japan

Background analysis

Based on C/S In the programming model of Architecture , The client often needs the data returned by the server , Different processing based on different states . for example , Correct state data, a way to present it , Wrong state data is another way to present it . So the standardized design of server response data came into being .

Response to standard design

In response to data standardization design , The first step is to analyze the response data , What data to respond to the client , How to design the state of these data . Suppose that the business data you are responding to now contains three parts : state , news , Specific data . We can design it like this , for example :

package com.cy.pj.common.pojo;
/**
* Based on this object, encapsulate the data that the server responds to the client
*/
public class ResponseResult {
/** Response status code ( Some people use code)*/
private Integer state=1;//1 Express ok,0 Express error,.....
/** Information corresponding to the status code */
private String message="ok";
/** Correct response data */
private Object data;
public ResponseResult(){}
public ResponseResult(String message){//new ResponseResult("delete ok"),
this.message=message;
}
public ResponseResult(Object data){//new ResponseResult(list);
this.data=data;
}
public ResponseResult(Throwable e){//new ResponseResult(e);
this.state=0;
this.message=e.getMessage();
}
public Integer getState() {
return state;
}
public void setState(Integer state) {
this.state = state;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public Object getData() {
return data;
}
public void setData(Object data) {
this.data = data;
}
}

Encapsulation of response data

stay Controller Class logic method for normal response data encapsulation , for example :

package com.cy.pj.module.controller;
import com.cy.pj.common.pojo.ResponseResult;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class ArithmeticController {
@RequestMapping("/doCompute/{n1}/{n2}")
public ResponseResult doCompute(@PathVariable Integer n1, @PathVariable Integer n2){
Integer result=n1/n2;
ResponseResult r=new ResponseResult(" The result of the calculation is :"+result);
r.setData(result);
return r;
}
}

Encapsulate the exception response data in the global exception handling object , for example :

package com.cy.pj.common.web;
import com.cy.pj.common.pojo.ResponseResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@RestControllerAdvice
public class GlobalExceptionHandler {
private static final Logger log= LoggerFactory.getLogger(GlobalExceptionHandler.class);//2
@ExceptionHandler(ArithmeticException.class)
public ResponseResult doHandleArithmeticException(ArithmeticException e){
e.printStackTrace();
log.info("exception {}",e.getMessage());
return new ResponseResult(e);// Encapsulate abnormal results
}
}

summary (Summary)

This section mainly explains Spring Boot How to standardize the response to logical data in engineering , Why is this design , The benefits of this design and how to design . Through the study of this section, we should improve the design concept of responding to the specification dimension , Master basic skills .

版权声明
本文为[Zhongkai]所创,转载请带上原文链接,感谢

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