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?java自學(xué)的學(xué)習(xí)路線：java自學(xué)的學(xué)習(xí)路線

一、員工管理系統(tǒng)項(xiàng)目說(shuō)明：

該項(xiàng)目主要是完成Spring+SpringMVC+mybatis的完整整合，功能實(shí)現(xiàn)比較單一，就是一個(gè)完成增刪改查的小項(xiàng)目！

源代碼在githee倉(cāng)庫(kù)：SSM實(shí)戰(zhàn)項(xiàng)目：人事管理系統(tǒng)（藍(lán)色版）

1、整個(gè)項(xiàng)目實(shí)現(xiàn)功能

管理員的登錄，注冊(cè)，員工的增刪改查，批量刪除，整個(gè)系統(tǒng)設(shè)計(jì)的目標(biāo)人群是管理者，系統(tǒng)的主要功能是對(duì)員工進(jìn)行各種信息的操作。主要是完成對(duì)數(shù)據(jù)庫(kù)的增刪改查的功能。

2、開(kāi)發(fā)環(huán)境

3、數(shù)據(jù)庫(kù)表設(shè)計(jì)

-- 創(chuàng)建員工表create table t_emp(id int primary key auto_increment,name varchar(20) not null,salary double not null,age int not null)-- 添加員工數(shù)據(jù)insert into t_emp values(null,"王恒杰",20000,21);insert into t_emp values(null,"楊福君",9000,19);-- 查詢員工數(shù)據(jù)select * from t_emp;-- 創(chuàng)建管理員表create table t_admin(  id    int  primary key auto_increment, username varchar(20), password varchar(50))-- 添加數(shù)據(jù)insert into t_admin values(null,"王恒杰","123456");-- 查詢select * from t_admin

4、Maven導(dǎo)入項(xiàng)目所依賴的jar包

          <dependency>            <groupId>junitgroupId>            <artifactId>junitartifactId>            <version>4.11version>            <scope>testscope>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-coreartifactId>            <version>4.3.2.RELEASEversion>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-contextartifactId>            <version>4.3.2.RELEASEversion>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-context-supportartifactId>            <version>4.3.2.RELEASEversion>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-jdbcartifactId>            <version>4.3.2.RELEASEversion>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-aopartifactId>            <version>4.3.2.RELEASEversion>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-beansartifactId>            <version>4.3.2.RELEASEversion>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-expressionartifactId>            <version>4.3.2.RELEASEversion>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-aspectsartifactId>            <version>4.3.2.RELEASEversion>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-txartifactId>            <version>4.3.2.RELEASEversion>        dependency>        <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-webartifactId>            <version>4.3.2.RELEASEversion>        dependency>                <dependency>            <groupId>org.springframeworkgroupId>            <artifactId>spring-webmvcartifactId>            <version>4.3.2.RELEASEversion>        dependency>                <dependency>            <groupId>javax.servletgroupId>            <artifactId>servlet-apiartifactId>            <version>2.5version>            <scope>providedscope>        dependency>                <dependency>            <groupId>javax.servlet.jspgroupId>            <artifactId>jsp-apiartifactId>            <version>2.1version>        dependency>                <dependency>            <groupId>jstlgroupId>            <artifactId>jstlartifactId>            <version>1.2version>        dependency>                <dependency>            <groupId>mysqlgroupId>            <artifactId>mysql-connector-javaartifactId>            <version>8.0.16version>        dependency>                <dependency>            <groupId>org.mybatisgroupId>            <artifactId>mybatisartifactId>            <version>3.4.6version>        dependency>                <dependency>            <groupId>org.mybatisgroupId>            <artifactId>mybatis-springartifactId>            <version>1.3.1version>        dependency>

5、Spring+mybatis整合工廠（applicationContext.xml）

        <context:component-scan base-package="com.tjcu.whj">context:component-scan>          <context:property-placeholder location="classpath:jdbc.properties">context:property-placeholder>           <bean class="com.alibaba.druid.pool.DruidDataSource" name="dataSource">        <property name="driverClassName" value="${jdbc.driver}">property>        <property name="url" value="${jdbc.url}">property>        <property name="username" value="${jdbc.username}">property>        <property name="password" value="${jdbc.password}">property>    bean>        <bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlSessionFactory">                <property name="dataSource" ref="dataSource">property>                <property name="mapperLocations" value="classpath:com/tjcu/mapper/*DaoMapper.xml">property>                <property name="typeAliasesPackage" value="com.tjcu.whj.entity">property>    bean>            <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">                <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory">property>                <property name="basePackage" value="com.tjcu.whj.dao">property>    bean>            <bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager">        <property name="dataSource" ref="dataSource">property>    bean>            <tx:annotation-driven transaction-manager="transactionManager">tx:annotation-driven>

6、Spring+SpringMVC整合工廠（Spring-mvc.xml）

      <context:component-scan base-package="com.tjcu.whj">context:component-scan>        <mvc:annotation-driven/>        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">                <property name="prefix" value="/">property>                <property name="suffix" value=".jsp">property>    bean>        <mvc:default-servlet-handler/>

二、管理員登錄/注冊(cè)模塊功能開(kāi)發(fā)

• 功能模塊：登錄，注冊(cè)，注銷，密碼加密

• 注冊(cè)示意圖

• 登錄示意圖

1、dao層（adminDao.java）

public interface AdminDao {    /**     * 登錄     * @param admin     * @return     */    public Admin login(Admin admin);    /**     *  注冊(cè)     * @param admin     */    public void register(Admin admin);}

2、Service層

（1）adminService接口層

public interface AdminService {    /**     * 登錄     * @param admin     * @return     */    public Admin login(Admin admin);    /**     *  注冊(cè)     * @param admin     */    public void register(Admin admin);}

（2）adminServiceImpl實(shí)現(xiàn)類

@Service("adminService")@Transactionalpublic class AdminServiceImpl implements AdminService {    @Autowired  private AdminDao adminDao;    @Override    public Admin login(Admin admin) {        return adminDao.login(admin);    }    @Override    public void register(Admin admin) {         adminDao.register(admin);    }}

3、功能測(cè)試（adminTest）

public class AdminTest {    @Test    public void login(){        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");        AdminService adminService = (AdminService) context.getBean("adminService");        Admin admin = new Admin(null,null, "王恒杰", "123456",true);        Admin login = adminService.login(admin);        System.out.println(login);    }    @Test    public void register(){        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");        AdminService adminService = (AdminService) context.getBean("adminService");        Admin admin = new Admin(null, "風(fēng)犬少年","鄧正武", "234567",true);        adminService.register(admin);    }}

4、Controller層

@Controller("adminController")@RequestMapping("admin")public class AdminController {    /**     * 將adminService到AdminController中     */    @Autowired    private AdminService adminService;    /**     * 登錄     * @param admin     * @return     */    @RequestMapping("login")    public String login(Admin admin,HttpServletRequest request){        String password = MD5Utils.md5(admin.getPassword());        admin.setPassword(password);        Admin admin1 = adminService.login(admin);        System.out.println(admin1);        if(admin1!=null){            request.getSession().setAttribute("admin",admin1);            return "redirect:/emp/show";        }       return "redirect:/login.jsp";    }    /**     *  注冊(cè)     * @param admin     */    @RequestMapping("register")    public String register(Admin admin){        String password = MD5Utils.
            
                     

                 

                                                                                                                    
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