Spring Boot 获取Post Body参数的方法

1. 通过 @RequestBody 注解获取 Post 参数

url格式：http://localhost/adduser

bean：

// 注意这里类的属性名要和post请求携带的参数名一样
public class UserModel {
    private String username;
    private String password;
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
}

用这个bean来封装接收的参数：

@PostMapping("/addUser")
public String addUser(@RequestBody UserModel user) {
    System.out.println("username is:"+user.getUsername());
    System.out.println("password is:"+user.getPassword()); 
    return "username is:"+username + " " + "password is:"+password;
 }

2. 通过 HttpServletRequest 接收参数

url格式：http://localhost/adduser

@PostMapping("/adduser")
public String addUser(HttpServletRequest request) {
     String username=request.getParameter("username");
     String password=request.getParameter("password");
     System.out.println("username is:"+username);
     System.out.println("password is:"+password);
     return "username is:"+username + " " + "password is:"+password;
}

4. 通过 bean 接收参数

url格式：http://localhost/adduser

bean：

// 注意这里类的属性名要和post请求携带的参数名一样
public class UserModel {
    private String username;
    private String password;
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
}

用这个bean来封装接收的参数：

@PostMapping("/addUser")
public String addUser(UserModel user) {
    System.out.println("username is:"+user.getUsername());
    System.out.println("password is:"+user.getPassword()); 
    return "username is:"+username + " " + "password is:"+password;
 }