個人作業-學習記錄App開發進度3（註冊介面和註冊介面邏輯）

繪製註冊頁面，程式碼如下：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:orientation="vertical"
              android:gravity="center">

    <EditText
            android:id="@+id/TextAccount"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="請輸入學號"
            android:padding="16dp"
            android:layout_margin="16dp"/>

    <EditText
            android:id="@+id/TextPassword"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="請輸入密碼"
            android:inputType="textPassword"
            android:padding="16dp"
            android:layout_margin="16dp"/>
    <EditText
            android:id="@+id/TextName"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="請輸入名字"
            android:padding="16dp"
            android:layout_margin="16dp"/>
    <EditText
            android:id="@+id/TextPhone"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="請輸入手機號碼"
            android:padding="16dp"
            android:layout_margin="16dp"/>
    <EditText
            android:id="@+id/TextClass1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="請輸入班級"
            android:padding="16dp"
            android:layout_margin="16dp"/>
    <Button
            android:id="@+id/Register"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="確認註冊"
            android:padding="16dp"
            android:layout_margin="16dp"/>
</LinearLayout>
接著編寫註冊頁面的程式碼邏輯
程式碼如下：

package com.example.projects;

import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import com.example.projects.Dao.API;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

public class Register extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        Button button = findViewById(R.id.Register);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                API api = RetrofitUtils.getRetrofit(AppDataConfig.getURL()).create(API.class);
                register(api);
            }
        });
    }
    private void register(API api) {

        EditText textAccount = findViewById(R.id.TextAccount);
        String id = textAccount.getText().toString();

        EditText textPassword = findViewById(R.id.TextPassword);
        String password = textPassword.getText().toString();

        EditText textName = findViewById(R.id.TextName);
        String name1 = textName.getText().toString();

        EditText textPhone = findViewById(R.id.TextPhone);
        String phone = textPhone.getText().toString();

        EditText textClass1 = findViewById(R.id.TextClass1);
        String class1 = textClass1.getText().toString();

        api.getRegister(id,password,name1,phone,class1).enqueue(new Callback<Boolean>() {
            @Override
            public void onResponse(Call<Boolean> call, Response<Boolean> response) {
                if (response.isSuccessful()) {
                    boolean result = response.body();
                    Toast.makeText(Register.this, "註冊成功", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(Register.this, "註冊失敗", Toast.LENGTH_SHORT).show();
                }
            }
            @Override
            public void onFailure(Call<Boolean> call, Throwable t) {
                System.out.println("請求失敗");
                System.out.println(t.getMessage());
            }
        });
    }
}
api程式碼如下：

package com.example.projects.Dao;

import retrofit2.Call;
import retrofit2.http.Field;
import retrofit2.http.FormUrlEncoded;
import retrofit2.http.POST;

public interface API {
    @FormUrlEncoded
    @POST("login/login")
    Call<Boolean> getLogin(@Field("id") String id,@Field("password") String password);
    @FormUrlEncoded
    @POST("login/register")
    Call<Boolean> getRegister(@Field("id") String id,@Field("password") String password,@Field("name1") String name1,@Field("phone") String phone,@Field("class1") String class1);
}
接著是後端程式碼：

package com.example.projectsweb.controller;


import com.example.projectsweb.entity.Login;
import com.example.projectsweb.service.impl.LoginServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 *  前端控制器
 * </p>
 *
 * @author projectsweb
 * @since 2024-03-11
 */
@RestController
@RequestMapping("/login")
public class LoginController {
    @Autowired
    private LoginServiceImpl loginService;
    @PostMapping("/login")
    private boolean login(@RequestParam String id, @RequestParam String password) {
        boolean result = false;

        // 在資料庫中查詢是否存在匹配的id和password
        Login login = loginService.lambdaQuery()
                .select(Login::getId, Login::getPassword)
                .eq(Login::getId, id)
                .eq(Login::getPassword, password)
                .one();
        if (login != null) {
            result = true;
        }
        return result;
    }
    @PostMapping("/register")
    private boolean register(@RequestParam String id, @RequestParam String password,@RequestParam String name1, @RequestParam String phone,@RequestParam String class1) {
        boolean result = false;
        Login login= new Login(id, password, name1, phone, class1,0);
        loginService.save(login);
        return result;
    }
}
只需要在原先的logincontroller類新增一個新增資料的程式碼了。