springboot可以实现前后端参数绑定

普通POST请求

User.java

package cn.ac.iie.bean;

public class User {

private String userName;

private String passwordEn;

public User(String userName, String passwordEn) {

this.userName = userName;

this.passwordEn = passwordEn;

}

@Override

public String toString() {

return "User{" +

"userName='" + userName + '\'' +

", passwordEn='" + passwordEn + '\'' +

'}';

}

public String getUserName() {

return userName;

}

public void setUserName(String userName) {

this.userName = userName;

}

public String getPasswordEn() {

return passwordEn;

}

public void setPasswordEn(String passwordEn) {

this.passwordEn = passwordEn;

}

}

新建UserController.java

@RestController

public class UserController {

@Autowired

private UserService userService;

@PostMapping("/user/add")

public Object addUser(User user) {

System.out.println(user);

return "CREATED";

}

}

可以直接使用PostMan来模拟发送请求，

POST请求，发送JSON数据格式

新建PrivilegesController.java

@RestController

public class PrivilegesController {

@Autowired

private PrivilegesService privilegesService;

@PostMapping("/privileges/add")

public Object privilegesAdd(@RequestBody Privileges2 privileges2) {

System.out.println(privileges2);

return "success";

}

}

Privileges.java

package cn.ac.iie.bean;

import java.util.List;

public class Privileges {

private String userName;

private String authorityType;

private List authorityApps;

@Override

public String toString() {

return "Privileges{" +

"userName='" + userName + '\'' +

", authorityType='" + authorityType + '\'' +

", authorityApps=" + authorityApps +

'}';

}

public String getUserName() {

return userName;

}

public void setUserName(String userName) {

this.userName = userName;

}

public String getAuthorityType() {

return authorityType;

}

public void setAuthorityType(String authorityType) {

this.authorityType = authorityType;

}

public List getAuthorityApps() {

return authorityApps;

}

public void setAuthorityApps(List authorityApps) {

this.authorityApps = authorityApps;

}

}

bean中包含list，因此需要前端传递数组，后台可以通过spring的@RequestBody直接获取出对应的bean。

postman需要准备的：

选post请求

Headers中添加 key: Content-Type value:application/json

Body中选raw, JSON(application/json)

文本框中写入json参数

{

"userName": "vincent",

"authorityType": "mac",

"authorityApps": ["1","2"]

}

这样后台就可以收到对象了