【从0到1，搭建Spring Boot+RESTful API+Shiro+Mybatis+SQLServer权限系统】03、创建RESTful API，并统一处理返回值

本节应用Spring对RESTful的支持，使用了如@RestController等注解实现RESTful控制器。

如果对Spring中的RESTful不太明白，请查看相关书籍

1、创建一个数据对象，用来统一RESTful API的返回格式

package com.ltsolution.framework.common.msgmodel;

import java.util.HashMap;
import java.util.Map;

public class AppResult {
    private String status;
    private String error;
    private String message;
    private Map<String, Object> data = new HashMap<String, Object>();

    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }

    public String getError() {
        return error;
    }

    public void setError(String error) {
        this.error = error;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Map<String, Object> getData() {
        return data;
    }

    public void setData(Map<String, Object> data) {
        this.data = data;
    }

    public AppResult ok(String statusMsg) {
        this.status="200";
        this.message=statusMsg;
        return this;
    }
    public AppResult error(String statusMsg) {
        this.status="500";
        this.message=statusMsg;
        return this;
    }
    public AppResult addData(String key,Object object) {
        this.data.put(key,object);
        return this;
    }
}

2、创建RESTful控制器

@RestController
@RequestMapping(value = "/")
public class UserController {

    @PostMapping("/login")
    public AppResult login(HttpServletRequest request, HttpServletResponse response) throws Exception {
        return new AppResult().ok("登录成功!").addData("token", 1234);
    }
    @PostMapping("/test")
    public AppResult test(HttpServletRequest request, HttpServletResponse response) throws Exception {
        return new AppResult().ok("测试!");
    }

}

3、测试API