目錄一、Android前端實現二、數據庫三、SpringBoot后端搭建四、部署至服務器五、運行測試一、Android前端實現

新建一個login的項目，主要的幾個文件在這里

1、gradle引入OKhttp3依賴

implementation ’com.squareup.okhttp3:okhttp:3.14.7’ implementation ’com.squareup.okio:okio:1.17.5’

2、activity_main.xml布局文件

<?xml version='1.0' encoding='utf-8'?><androidx.constraintlayout.widget.ConstraintLayout xmlns:android='http://schemas.android.com/apk/res/android' xmlns:app='http://schemas.android.com/apk/res-auto' xmlns:tools='http://schemas.android.com/tools' android:layout_width='match_parent' android:layout_height='match_parent' tools:context='.MainActivity'> <EditTextandroid: android:layout_width='wrap_content'android:layout_height='wrap_content'android:hint='用戶名'android:textSize='34sp'app:layout_constraintBottom_toBottomOf='parent'app:layout_constraintEnd_toEndOf='parent'app:layout_constraintStart_toStartOf='parent'app:layout_constraintTop_toTopOf='parent'app:layout_constraintVertical_bias='0.051' /> <EditTextandroid: android:layout_width='wrap_content'android:layout_height='wrap_content'android:hint='密碼'android:textSize='34sp'app:layout_constraintBottom_toBottomOf='parent'app:layout_constraintEnd_toEndOf='parent'app:layout_constraintStart_toStartOf='parent'app:layout_constraintTop_toBottomOf='@+id/username'app:layout_constraintVertical_bias='0.067' /> <Buttonandroid: android:layout_width='wrap_content'android:layout_height='wrap_content'android:onClick='register'android:text='注冊'android:textSize='24sp'app:backgroundTint='#E91E63'app:layout_constraintBottom_toBottomOf='parent'app:layout_constraintEnd_toEndOf='parent'app:layout_constraintHorizontal_bias='0.501'app:layout_constraintStart_toStartOf='parent'app:layout_constraintTop_toBottomOf='@+id/password'app:layout_constraintVertical_bias='0.058' /> <Buttonandroid: android:layout_width='wrap_content'android:layout_height='wrap_content'android:onClick='getUser'android:text='獲取'android:textSize='24sp'app:backgroundTint='#E91E63'app:layout_constraintBottom_toBottomOf='parent'app:layout_constraintEnd_toEndOf='parent'app:layout_constraintHorizontal_bias='0.501'app:layout_constraintStart_toStartOf='parent'app:layout_constraintTop_toBottomOf='@+id/button3'app:layout_constraintVertical_bias='0.174' /> <Buttonandroid: android:layout_width='wrap_content'android:layout_height='wrap_content'android:text='登錄'android:textSize='24sp'app:backgroundTint='#E91E63'android:onClick='login'app:layout_constraintBottom_toBottomOf='parent'app:layout_constraintEnd_toEndOf='parent'app:layout_constraintHorizontal_bias='0.501'app:layout_constraintStart_toStartOf='parent'app:layout_constraintTop_toBottomOf='@+id/button'app:layout_constraintVertical_bias='0.113' /></androidx.constraintlayout.widget.ConstraintLayout>

3、AndroidManifest.xml配置文件

這里需要加上網絡請求權限，添加網絡權限的時候注意：在res目錄下新建xml目錄，創建network_security_config.xml文件

<?xml version='1.0' encoding='utf-8'?><network-security-config> <base-config cleartextTrafficPermitted='true' /></network-security-config>

并在配置文件中加入這行代碼：

android:networkSecurityConfig='@xml/network_security_config'

完整的AndroidManifest.xml文件如下

<?xml version='1.0' encoding='utf-8'?><manifest xmlns:android='http://schemas.android.com/apk/res/android' package='com.example.login'> <uses-permission android:name='android.permission.INTERNET'/> <uses-permission android:name='android.permission.WRITE_EXTERNAL_STORAGE' /> <uses-permission android:name='android.permission.READ_EXTERNAL_STORAGE' /> <applicationandroid:allowBackup='true'android:icon='@mipmap/ic_launcher'android:label='@string/app_name'android:roundIcon='@mipmap/ic_launcher_round'android:networkSecurityConfig='@xml/network_security_config'android:supportsRtl='true'android:theme='@style/Theme.Login'><activity android:name='.MainActivity'> <intent-filter><action android:name='android.intent.action.MAIN' /><category android:name='android.intent.category.LAUNCHER' /> </intent-filter></activity> </application></manifest>

4、創建User實體類

新建entity目錄創建User實體類。注意這里我是根據后端數據庫的字段創建的，在實現登錄注冊的時候只需要id,username,password 幾個基礎的字段就行，這里我比較多，讀者可以自行忽略。User.java

package com.example.login.entity;public class User { private Integer userId; private String userName; private String userPassword; private String currentVersion; private String latestVersion; private String updateDescription; private String headPortrait; private String nickName; private String vipTime; private String userCategory; private String registerDate; public User(Integer userId, String userName, String userPassword, String currentVersion, String latestVersion, String updateDescription, String headPortrait, String nickName, String vipTime, String userCategory, String registerDate) {this.userId = userId;this.userName = userName;this.userPassword = userPassword;this.currentVersion = currentVersion;this.latestVersion = latestVersion;this.updateDescription = updateDescription;this.headPortrait = headPortrait;this.nickName = nickName;this.vipTime = vipTime;this.userCategory = userCategory;this.registerDate = registerDate; } public User() { } public Integer getUserId() {return userId; } public void setUserId(Integer userId) {this.userId = userId; } public String getUserName() {return userName; } public void setUserName(String userName) {this.userName = userName; } public String getUserPassword() {return userPassword; } public void setUserPassword(String userPassword) {this.userPassword = userPassword; } public String getCurrentVersion() {return currentVersion; } public void setCurrentVersion(String currentVersion) {this.currentVersion = currentVersion; } public String getLatestVersion() {return latestVersion; } public void setLatestVersion(String latestVersion) {this.latestVersion = latestVersion; } public String getUpdateDescription() {return updateDescription; } public void setUpdateDescription(String updateDescription) {this.updateDescription = updateDescription; } public String getHeadPortrait() {return headPortrait; } public void setHeadPortrait(String headPortrait) {this.headPortrait = headPortrait; } public String getNickName() {return nickName; } public void setNickName(String nickName) {this.nickName = nickName; } public String getVipTime() {return vipTime; } public void setVipTime(String vipTime) {this.vipTime = vipTime; } public String getUserCategory() {return userCategory; } public void setUserCategory(String userCategory) {this.userCategory = userCategory; } public String getRegisterDate() {return registerDate; } public void setRegisterDate(String registerDate) {this.registerDate = registerDate; }}

LoginUser.java

public class LoginUser { private String userName; private String userPassword; public LoginUser(String userName, String userPassword) {this.userName = userName;this.userPassword = userPassword; } public LoginUser() { } public String getUserName() {return userName; } public void setUserName(String userName) {this.userName = userName; } public String getUserPassword() {return userPassword; } public void setUserPassword(String userPassword) {this.userPassword = userPassword; }}

5、MainActivity.java

package com.example.login;import androidx.appcompat.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;import com.example.login.entity.User;import org.json.JSONException;import org.json.JSONObject;import java.io.IOException;import okhttp3.Call;import okhttp3.Callback;import okhttp3.MediaType;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.RequestBody;import okhttp3.Response;public class MainActivity extends AppCompatActivity { private EditText username; private EditText password; private User user; @Override protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);username = findViewById(R.id.username);password = findViewById(R.id.password); } public void register(View view) {user = new User();user.setUserName(username.getText().toString());user.setUserPassword(password.getText().toString());Log.d('whqusername',username.getText().toString());Log.d('whqpassword',password.getText().toString());new Thread(new Runnable() { @Override public void run() {MediaType JSON = MediaType.parse('application/json;charset=utf-8');JSONObject jsonObject = new JSONObject();OkHttpClient httpClient = new OkHttpClient();try { jsonObject.put('userId',10); jsonObject.put('userName',user.getUserName()); jsonObject.put('userPassword',user.getUserPassword()); jsonObject.put('currentVersion',null); jsonObject.put('latestVersion',null); jsonObject.put('updateDescription',null); jsonObject.put('headPortrait',null); jsonObject.put('nickName',user.getUserName()); jsonObject.put('vipTime',null); jsonObject.put('userCategory',null); jsonObject.put('registerDate',null);} catch (JSONException e) { e.printStackTrace();}RequestBody requestBody = RequestBody.create(JSON, String.valueOf(jsonObject));String url = 'http://ip:8001/server/user/addUser/';Request request = new Request.Builder().url(url).post(requestBody).build();Call call = httpClient.newCall(request);call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) {Log.d('whq','失敗了'); } @Override public void onResponse(Call call, Response response) throws IOException {Log.d('whq',response.toString()+'------------------');Log.d('whq',response.body().toString()+'------------------'); }}); }}).start(); } public void getUser(View view) {OkHttpClient httpClient = new OkHttpClient();String url = 'http://ip:8001/server/user/getAllUserName';Request getRequest = new Request.Builder().url(url).get().build();Call call = httpClient.newCall(getRequest);new Thread(new Runnable() { @Override public void run() {try { //同步請求，要放到子線程執行 Response response = call.execute(); Log.i('whq+getAllUserName', 'okHttpGet run: response:'+ response.body().string());} catch (IOException e) { e.printStackTrace();} }}).start(); } public void login(View view) {loginUser = new LoginUser();loginUser.setUserName(username.getText().toString());loginUser.setUserPassword(password.getText().toString());new Thread(new Runnable() { @Override public void run() {MediaType JSON = MediaType.parse('application/json;charset=utf-8');JSONObject jsonObject = new JSONObject();OkHttpClient httpClient = new OkHttpClient();try { jsonObject.put('userName',loginUser.getUserName()); jsonObject.put('userPassword',MD5.encrypt(loginUser.getUserPassword()));} catch (JSONException e) { e.printStackTrace();}RequestBody requestBody = RequestBody.create(JSON, String.valueOf(jsonObject));String url = 'http://ip:8001/server/user/login';Request request = new Request.Builder().url(url).post(requestBody).build();Call call = httpClient.newCall(request);call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) {Log.d('whq登錄','失敗了'); } @Override public void onResponse(Call call, Response response) throws IOException {String MyResult = response.body().string();Log.d('whq登錄',response+'---------response---------');Log.d('whq登錄',response.message()+'---------message---------');Log.d('whq登錄',response.body().toString()+'------------------');Log.d('whq登錄',MyResult+'-----------MyResult-------'); }}); }}).start(); }}

到這里就實現了Android的前端實現。

二、數據庫

數據庫就是簡單的一個user表

SET NAMES utf8mb4;SET FOREIGN_KEY_CHECKS = 0;-- ------------------------------ Table structure for user-- ----------------------------DROP TABLE IF EXISTS `user`;CREATE TABLE `user` ( `userId` int(11) NOT NULL AUTO_INCREMENT, `userName` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `userPassword` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `currentVersion` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `latestVersion` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `updateDescription` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `headPortrait` mediumblob NULL, `nickName` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `vipTime` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `userCategory` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT ’normal’, `registerDate` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, PRIMARY KEY (`userId`, `userName`) USING BTREE) ENGINE = InnoDB AUTO_INCREMENT = 13 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = DYNAMIC;SET FOREIGN_KEY_CHECKS = 1;三、SpringBoot后端搭建

后端搭建用到的是SSM框架

1、新建一個springboot項目，添加依賴

pom.xml文件。這里有mybatis-plus+swagger+velocity，使用了代碼生成器

<properties><java.version>1.8</java.version><mybatis-plus.version>3.0.5</mybatis-plus.version><swagger.version>2.7.0</swagger.version><jodatime.version>2.10.1</jodatime.version><poi.version>3.17</poi.version><httpclient.version>4.5.1</httpclient.version><gson.version>2.8.2</gson.version><velocity.version>2.0</velocity.version> </properties><dependencies> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId> </dependency> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope> </dependency> <!--Spring Cloud--> <dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Hoxton.RELEASE</version><type>pom</type><scope>import</scope> </dependency> <!--mybatis-plus 持久層--> <dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>${mybatis-plus.version}</version> </dependency> <!-- velocity 模板引擎, Mybatis Plus 代碼生成器需要 --> <dependency><groupId>org.apache.velocity</groupId><artifactId>velocity-engine-core</artifactId><version>${velocity.version}</version> </dependency> <!--swagger--> <dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>${swagger.version}</version> </dependency> <!--swagger ui--> <dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger-ui</artifactId><version>${swagger.version}</version> </dependency> <!--日期時間工具--> <dependency><groupId>joda-time</groupId><artifactId>joda-time</artifactId><version>${jodatime.version}</version> </dependency> <!--mysql--> <dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId> </dependency> <!--lombok用來簡化實體類：需要安裝lombok插件--> <dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId> </dependency> <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId> </dependency></dependencies>

2、application.properties文件

# 服務端口server.port=8001# 服務名spring.application.name=heartrate# 環境設置：dev、test、prodspring.profiles.active=dev# mysql數據庫連接spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driverspring.datasource.url=jdbc:mysql://ip:3310/heartrate?serverTimezone=GMT%2B8&useSSL=falsespring.datasource.username=rootspring.datasource.password=123456#返回json的全局時間格式spring.jackson.date-format=yyyy-MM-dd HH:mm:ssspring.jackson.time-zone=GMT+8##mybatis日志//要使用logback日志，就需要注釋掉#mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl#配置mapper xml文件的路徑mybatis-plus.mapper-locations=classpath:com/atguigu/eduservice/mapper/xml/*.xml

這里的數據庫連接發現我是使用3310端口，因為我的服務器是使用docker創建數據庫的。請自行查看我之前的文章。

3、CodeGenerator.java代碼生成器

import com.baomidou.mybatisplus.annotation.DbType;import com.baomidou.mybatisplus.annotation.IdType;import com.baomidou.mybatisplus.generator.AutoGenerator;import com.baomidou.mybatisplus.generator.config.DataSourceConfig;import com.baomidou.mybatisplus.generator.config.GlobalConfig;import com.baomidou.mybatisplus.generator.config.PackageConfig;import com.baomidou.mybatisplus.generator.config.StrategyConfig;import com.baomidou.mybatisplus.generator.config.rules.DateType;import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;import org.junit.Test;/** * @author ahuwhq * @since 2021/7/27 */public class CodeGenerator { @Test public void run() {// 1、創建代碼生成器AutoGenerator mpg = new AutoGenerator();// 2、全局配置GlobalConfig gc = new GlobalConfig();String projectPath = System.getProperty('user.dir');//這里改成自己的目錄gc.setOutputDir('E:LaboratoryCodeserviceserver' + '/src/main/java');gc.setAuthor('ahuwhq');gc.setOpen(false); //生成后是否打開資源管理器gc.setFileOverride(false); //重新生成時文件是否覆蓋gc.setServiceName('%sService');//去掉Service接口的首字母Igc.setIdType(IdType.ID_WORKER_STR); //主鍵策略gc.setDateType(DateType.ONLY_DATE);//定義生成的實體類中日期類型gc.setSwagger2(true);//開啟Swagger2模式mpg.setGlobalConfig(gc);// 3、數據源配置DataSourceConfig dsc = new DataSourceConfig();//這里的數據庫改為自己的dsc.setUrl('jdbc:mysql://ip:3310/heartrate?serverTimezone=GMT%2B8');dsc.setDriverName('com.mysql.cj.jdbc.Driver');dsc.setUsername('root');dsc.setPassword('123456');dsc.setDbType(DbType.MYSQL);mpg.setDataSource(dsc);// 4、包配置PackageConfig pc = new PackageConfig();pc.setParent('com.message');pc.setModuleName('server'); //模塊名pc.setController('controller');pc.setEntity('entity');pc.setService('service');pc.setMapper('mapper');mpg.setPackageInfo(pc);// 5、策略配置StrategyConfig strategy = new StrategyConfig();//這里是對應的數據庫的表strategy.setInclude('user');strategy.setNaming(NamingStrategy.underline_to_camel);//數據庫表映射到實體的命名策略strategy.setTablePrefix(pc.getModuleName() + '_'); //生成實體時去掉表前綴strategy.setColumnNaming(NamingStrategy.underline_to_camel);//數據庫表字段映射到實體的命名策略strategy.setEntityLombokModel(true); // lombok 模型 @Accessors(chain = true) setter鏈式操作strategy.setRestControllerStyle(true); //restful api風格控制器strategy.setControllerMappingHyphenStyle(true); //url中駝峰轉連字符mpg.setStrategy(strategy);// 6、執行mpg.execute(); }}

點擊運行就會自動生成文件

4、添加config目錄

這里的config目錄代碼生成器沒有幫我們生成，我們添加這個目錄主要是想使用swagger測試（SwaggerConfig），并且代碼生成器生成文件之后，我們需要配置一下能掃描到mapper文件（ServerConfig）

ServerConfig.java

package com.message.server.config;import com.baomidou.mybatisplus.core.injector.ISqlInjector;import com.baomidou.mybatisplus.extension.injector.LogicSqlInjector;import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;import org.mybatis.spring.annotation.MapperScan;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;@Configuration@MapperScan('com.message.server.mapper')public class ServerConfig { /** * 邏輯刪除插件 */ @Bean public ISqlInjector sqlInjector() {return new LogicSqlInjector(); } /** * 分頁插件 */ @Bean public PaginationInterceptor paginationInterceptor() {return new PaginationInterceptor(); }}

SwaggerConfig.java

import com.google.common.base.Predicates;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import springfox.documentation.builders.ApiInfoBuilder;import springfox.documentation.builders.PathSelectors;import springfox.documentation.service.ApiInfo;import springfox.documentation.service.Contact;import springfox.documentation.spi.DocumentationType;import springfox.documentation.spring.web.plugins.Docket;import springfox.documentation.swagger2.annotations.EnableSwagger2;@Configuration//配置類@EnableSwagger2//swagger2注解public class SwaggerConfig { @Bean public Docket webApiConfig(){return new Docket(DocumentationType.SWAGGER_2).groupName('webApi').apiInfo(webApiInfo()).select()//.paths(Predicates.not(PathSelectors.regex('/admin/.*'))).paths(Predicates.not(PathSelectors.regex('/error.*'))).build(); } private ApiInfo webApiInfo(){return new ApiInfoBuilder().title('網站-課程中心API文檔').description('本文檔描述了課程中心微服務接口定義').version('1.0').contact(new Contact('java', 'http://ahuwhq.com', 'ahuwhq@163.com')).build(); }}

5、Controller層實現 UserController.java

這里我實現了好多種方法，不僅是登錄注冊，但是Android前段我們只用到登錄注冊和獲取全部用戶

import com.message.server.entity.User;import com.message.server.entity.vo.UserAll;import com.message.server.service.UserService;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 ahuwhq * @since 2021-07-27 */@RestController@RequestMapping('/server/user')public class UserController { //訪問地址：http://ip:8001/server/user/findAll 最終部署到服務器時使用這個來訪問 //訪問地址：http://localhost:8001/server/user/findAll 這是本地測試地址也是Swagger地址 @Autowired private UserService userService; /** * 查詢所有的用戶 * @return */ @GetMapping('getAllUsers') public List<User> findAllUser(){//調用方法查詢List<User> list = userService.list(null);return list; } /** * 添加用戶,注冊功能 * @param user * @return */ @PostMapping('addUser') public Boolean addUser(@RequestBody User user){boolean save = userService.save(user);return save; } /** * 獲取所有用戶名 */ @GetMapping('getAllUserName') public List<UserAll> getAllUserName(){List<UserAll> userNamelist = userService.getAllUserName();return userNamelist; } /** * 根據用戶ID查詢用戶的昵稱 * @param id * @return */ @GetMapping('getUserNickname/{id}') public String getUserNickname(@PathVariable Integer id){User user = userService.getById(id);String nickName = user.getNickName();return nickName; } /** *修改密碼 * @param userName * @return */ @PostMapping('changePassword/{userName}/{password}') public Boolean changePassword(@PathVariable String userName, @PathVariable String password){Boolean result = userService.changePassword(userName,password);return result; } /** * 用戶的登錄功能PostMapping * @param loginuser * @return */ @PostMapping('login') public R login(@RequestBody loginUser loginuser){String token = userService.login(loginuser);if (token == 'wrong Password'){ return R.error().data('result',token);}else{ return R.ok().data('result',token);} }}

這里用到了幾個文件R.java，ResultCode.java,MyException.javaR.java

//統一返回結果import io.swagger.annotations.ApiModelProperty;import lombok.Data;import java.util.HashMap;import java.util.Map;@Datapublic class R { @ApiModelProperty(value = '是否成功') private Boolean success; @ApiModelProperty(value = '返回碼') private Integer code; @ApiModelProperty(value = '返回消息') private String message; @ApiModelProperty(value = '返回數據') private Map<String, Object> data = new HashMap<String, Object>(); //構造方法私有化 private R(){} //鏈式編程 //成功靜態方法 public static R ok(){R r = new R();r.setSuccess(true);r.setCode(ResultCode.SUCCESS);r.setMessage('成功');return r; } //失敗靜態方法 public static R error(){R r = new R();r.setSuccess(false);r.setCode(ResultCode.ERROR);r.setMessage('失敗');return r; } public R success(Boolean success){this.setSuccess(success);return this; } public R message(String message){this.setMessage(message);return this; } public R code(Integer code){this.setCode(code);return this; } public R data(String key, Object value){this.data.put(key, value);return this; } public R data(Map<String, Object> map){this.setData(map);return this; }}

ResultCode.java

public interface ResultCode { public static Integer SUCCESS = 20000;//成功 public static Integer ERROR = 20001;//失敗}

MyException.java

import lombok.AllArgsConstructor;import lombok.Data;import lombok.NoArgsConstructor;@Data@AllArgsConstructor//生成有參構造方法@NoArgsConstructor//生成無參構造方法public class MyException extends RuntimeException{ private Integer code;//狀態碼 private String msg;//異常信息}

5、UserService接口

public interface UserService extends IService<User> { /** * 獲取所有用戶名 * @return */ List<UserAll> getAllUserName(); /** * 修改密碼 * @param userName * @return */ Boolean changePassword(String userName,String password); /** * 用戶的登錄功能 * @param userName * @param password * @return */ Boolean login(String userName, String password);}

6、UserServiceImpl.java

public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements UserService { @Autowired private UserService userService; /** * 獲取所有用戶名 */ @Override public List<UserAll> getAllUserName() {//創建一個構造器QueryWrapper<User> wrapper = new QueryWrapper<>();//查詢所有的userNamewrapper.eq('userName',0);//重新封裝一個UserAll的類，專門來查詢所有用戶名List<User> users = baseMapper.selectList(wrapper);List<UserAll> userAlls = new ArrayList<>();for (int i = 0; i < users.size(); i++) { User user = users.get(i); String userName = user.getUserName(); UserAll userAll = new UserAll(); userAll.setUserName(userName); userAlls.add(userAll);}return userAlls ; } /** * 修改密碼 * @param userName * @param password * @return */ @Override public Boolean changePassword(String userName,String password) {QueryWrapper<User> wrapper = new QueryWrapper<>();wrapper.eq('userName',userName);User user = baseMapper.selectOne(wrapper);if (user == null){ return false;}user.setUserPassword(password);boolean save = userService.update(user,null);return save; } /** * 用戶的登錄功能PostMapping * @param loginuser * @return */ @Override public String login(loginUser loginuser) {String userName = loginuser.getUserName();String userPassword = loginuser.getUserPassword();//用戶名和密碼非空判斷if(org.springframework.util.StringUtils.isEmpty(userName) || org.springframework.util.StringUtils.isEmpty(userPassword)) { return 'wrong Password';}//判斷手機號是否正確QueryWrapper<User> wrapper = new QueryWrapper<>();wrapper.eq('userName',userName);User user = baseMapper.selectOne(wrapper);//判斷密碼//因為存儲到數據庫密碼肯定加密的//把輸入的密碼進行加密，再和數據庫密碼進行比較//加密方式 MD5if(!userPassword.equals(user.getUserPassword())) { return 'wrong Password';}else { return 'success login';} }}

注意：第一個獲取所有用戶名的方法會發現我自己生成一個實體類，原因是我的數據庫表里面有很多字段，但是我在前端展示的時候只能顯示幾個字段，就是起到保護隱私安全的作用。所以我新建了UserAll類。不影響閱讀這些邏輯。UserAll.java

@Datapublic class UserAll { private String userName;}

7、運行springboot

這就是全部代碼，我們運行之后啟動成功。然后打開swagger測試

這里就可以進行接口測試。這里就不進行展示了。

四、部署至服務器

我們使用maven打包。點擊package。就可以生成jar包了。

然后上傳至服務器。

這里我們就使用 java -jar server-0.0.1-SNAPSHOT.jar 命令運行起來就可以了。

這樣就跑起來了。

注意：這里有一個坑，要看服務器8001的端口有沒有開放，否則是不能通過ip訪問到的。

firewall-cmd --list-portfirewall-cmd --zone=public --add-port=8001/tcp --permanentfirewall-cmd --reloadfirewall-cmd --query-port=8001/tcp

firewall-cmd --zone=public --remove-port=8001/tcp --permanent # 刪除netstat -anp|grep 8001

然后打開一個接口

五、運行測試

打開AS ,運行APP，打印日志

簡單的登錄注冊基本功能邏輯就已經實現了，大致流程可以走通。接下來就可以繼續開發其他了。注：這里只是最基本的登錄注冊，還不完善，比如這里密碼用戶名是明文傳送，很容易被抓包，所以這篇花了一點時間做的demo，并不完善，后面會補充完整。

到此這篇關于Android使用OKhttp3實現登錄注冊功能+springboot搭建后端的文章就介紹到這了,更多相關Android后端springboot內容請搜索好吧啦網以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持好吧啦網！