<form th:action="@{/test/params/servletAPI}" method="get">
    用戶名;<input type="text" name="username"><br>
    密碼;<input type="password" name="password"><br>
    <input type="submit" value="提交"><br>
</form>

@Controller
public class GetparamController {
    @RequestMapping("/test/params/servletAPI")
    public String GetParams1(HttpServletRequest request){
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        System.out.println("username="+username+" password="+password);
        return "success";
    }

<form th:action="@{/test/params1}" method="get">
    用戶名;<input type="text" name="username"><br>
    密碼;<input type="password" name="password"><br>
    <input type="submit" value="提交"><br>
</form>

@RequestMapping("/test/params1")
    public String GetParams2(
            //required =true；這里表示必須傳入?yún)?shù)username
            //value = "username" 將username的值賦值給 String name
            //defaultValue = "home"；如果傳入了username沒(méi)有賦值則給他默認(rèn)值home，若有值則不管
            @RequestParam(value = "username",required =true,defaultValue = "home")String name, String password){
        System.out.println("username="+name+" password="+password);
        return "success";
    }

<form th:action="@{/test/params/pojo}" method="post">
    用戶名;<input type="text" name="username"><br>
    密碼;<input type="password" name="password"><br>
    <input type="submit" value="提交"><br>
</form>

public class User {
    private String username;
    private String password;


    public User() {
    }

    public User(String username, String password) {
        this.username = username;
        this.password = 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;
    }

    @Override
    public String toString() {
        return "User{" +
                "username='" + username + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

@RequestMapping("/test/params/pojo")
    public String GetParams2(User user){
        System.out.println(user);
        return "success";
    }

}