idea应用mybatis写增删改查

　　　　entity层　　

private Integer id;private String userCode;private String userName;private String userPassword;private Integer gender;private Date birthday;private String phone;private String address;private Integer userRole;private Integer createdBy;private Date creationDate;private Integer modifyBy;private Date modifyDate;

public Integer getId() {    return id;}

public void setId(Integer id) {    this.id = id;}

public String getUserCode() {    return userCode;}

public void setUserCode(String userCode) {    this.userCode = userCode;}

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 Integer getGender() {    return gender;}

public void setGender(Integer gender) {    this.gender = gender;}

public Date getBirthday() {    return birthday;}

public void setBirthday(Date birthday) {    this.birthday = birthday;}

public String getPhone() {    return phone;}

public void setPhone(String phone) {    this.phone = phone;}

public String getAddress() {    return address;}

public void setAddress(String address) {    this.address = address;}

public Integer getUserRole() {    return userRole;}

public void setUserRole(Integer userRole) {    this.userRole = userRole;}

public Integer getCreatedBy() {    return createdBy;}

public void setCreatedBy(Integer createdBy) {    this.createdBy = createdBy;}

public Date getCreationDate() {    return creationDate;}

public void setCreationDate(Date creationDate) {    this.creationDate = creationDate;}

public Integer getModifyBy() {    return modifyBy;}

public void setModifyBy(Integer modifyBy) {    this.modifyBy = modifyBy;}

public Date getModifyDate() {    return modifyDate;}

public void setModifyDate(Date modifyDate) {    this.modifyDate = modifyDate;}

　　　　Dao层

IUserDao：（Interface）

//查询public List<User> getAllUser();//新增void addUser(User user);//删除void  delUser(int id);//修改void  modifyUser(User user);//新增时获得主键void addUserKey(User user);//模糊查询public   List<User> getAllUsers();

IUserDao：（xml）

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<!--namespace需要指向接口全路径-->

        <mapper namespace="com.qzy.dao.IUserDao">

    <!--id代表当前命名空间下（接口下）的唯一方法名 resultType代表返回值类型-->

    <select resultType="User" id="getAllUser">        select * from smbms_user     </select>

    <insert  parameterType="User" id="addUser">        insert into smbms_user values (DEFAULT,#{userCode},#{userName},#{userPassword},#{gender},#{birthday},#{phone},#{address},#{userRole},#{createdBy},#{creationDate},#{modifyBy},#{modifyDate})    </insert>

    <insert id="addUserKey" parameterType="com.qzy.entity.User" useGeneratedKeys="true" keyProperty="id">         insert into smbms_user values (DEFAULT,#{userCode},#{userName},#{userPassword},#{gender},#{birthday},#{phone},#{address},#{userRole},#{createdBy},#{creationDate},#{modifyBy},#{modifyDate})    </insert>

    <delete id="delUser">        delete from smbms_user where  id=#{xxx}    </delete>

    <update id="modifyUser" parameterType="User">        update smbms_user set userName=#{userName} where id=#{id}    </update>

    <select id="getAllUsers" resultType="User">       select * from smbms_user where userName like '%${value}%';    </select></mapper>

resources层mybatis-config.（xml)

<?xml version="1.0" encoding="UTF-8" ?>

省略......

<typeAliases>    <!--单个设置别名-->    <!-- <typeAlias type="com.qzy.entity.User" alias="User"/>-->

    <!--全局设置别名-->    <package name="com.qzy.entity"/></typeAliases><!--log4j配置文件的读取（可以不写）-->

<settings>    <setting name="logImpl" value="LOG4J"/></settings>

省略......

</configuration>tset层tset（class）

private  static Logger log = Logger.getLogger(Test.class.getClass());    SqlSession sqlSession;    @Before    public void before() throws IOException {        //System.out.println("执行之前========================");        log.info("执行之前========================");        //步骤一：读取大配置文件        String source="mybatis-config.xml";        InputStream is = Resources.getResourceAsStream(source);        //步骤二：创建工厂        SqlSessionFactory factory=new SqlSessionFactoryBuilder().build(is);        //步骤三：创建SqlSession核心对象        sqlSession = factory.openSession();    }

    @Test    public void selectAllTest() throws IOException {      //步骤四：查        List<User> getAllUser = sqlSession.selectList("getAllUser");        for (User user:getAllUser) {            //System.out.println(user.getUserName());           log.info(user.getUserName());        }    }    //模糊    @Test    public  void  getAllUsers() throws  IOException{      List<User> userList=sqlSession.selectList("com.qzy.dao.IUserDao.getAllUsers","孙");        for (User u:userList){            ///System.out.println(u.getUserName());            log.info(u.getUserName());        }    }    //增    @Test    public  void  addUser() throws  IOException{       User user =new User();         user.setUserCode("hehe");         user.setUserName("牛皮呀");         user.setUserPassword("123123");         user.setGender(2);         user.setBirthday(new Date());         user.setPhone("13215689594");         user.setAddress("北京市海淀区五道口北大青鸟");         user.setUserRole(2);         user.setCreatedBy(1);         user.setCreationDate(new Date());         user.setModifyBy(null);         user.setModifyDate(null);        sqlSession.insert("com.qzy.dao.IUserDao.addUser",user);        sqlSession.commit();        //查看是否会返回自增的主键       //System.out.println(user.getId());        log.info(user.getId());    }//删@Testpublic void delUser() throws  IOException{    sqlSession.delete("com.qzy.dao.IUserDao.delUser","17");    sqlSession.commit();    sqlSession.close();    //System.out.println("删除成功！");    log.info("删除成功！");}//改@Testpublic  void  modifyUser() throws  IOException{   User user=new User();    user.setUserName("安其拉");    user.setId(16);    sqlSession.update("com.qzy.dao.IUserDao.modifyUser",user);    sqlSession.commit();    sqlSession.close();   //System.out.println("更改成功！");    log.info("更改成功！");}    @After    public void after(){        //System.out.println("执行之后====================================");        log.info("执行之后========================");        //最后关闭sqlSession释放资源        sqlSession.close();    }

log4j.(properties)

### direct log messages to stdout ###log4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.Target=System.outlog4j.appender.stdout.layout=org.apache.log4j.PatternLayoutlog4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### direct messages to file mylog.log ###log4j.appender.file=org.apache.log4j.FileAppender###日志文件的了路径###log4j.appender.file.File=G:\\mylog.log　　　　　　　　log4j.appender.file.layout=org.apache.log4j.PatternLayoutlog4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### set log levels - for more verbose logging change 'info' to 'debug' ######log4j.rootLogger=debug, stdout,filelog4j.logger.com.qzy.dao=debug, stdout,file