SSM框架-Mybatis基于注解实现增删查改和多参数列表查询

一、创建数据库、数据表

use test;
create table t_employeer(
employeer_id int not null  primary key AUTO_INCREMENT ,
employeer_name varchar(50) default null,
employeer_age int default null,
employeer_department varchar(100) default null,
employeer_worktype varchar(100) default null
)

use test;
create table t_employeer(
employeer_id int not null  primary key AUTO_INCREMENT ,
employeer_name varchar(50) default null,
employeer_age int default null,
employeer_department varchar(100) default null,
employeer_worktype varchar(100) default null
)

二、创建工程

整个工程目录如下：

记得要导入相应的包！

1、雇员对应的类Employeer.java

package com.mucfc.model;
/**
 * 雇员信息类
 *@author linbingwen
 *@time 2015.5.11
 */
public class Employeer {
    private Integer employeer_id;
    private String employeer_name;
    private Integer employeer_age ;
    private String employeer_department;
    private String employeer_worktype;

    public Employeer() {
        super();
    }
    public Integer getEmployeer_id() {
        return employeer_id;
    }
    public void setEmployeer_id(Integer employeer_id) {
        this.employeer_id = employeer_id;
    }
    public String getEmployeer_name() {
        return employeer_name;
    }
    public void setEmployeer_name(String employeer_name) {
        this.employeer_name = employeer_name;
    }
    public Integer getEmployeer_age() {
        return employeer_age;
    }
    public void setEmployeer_age(Integer employeer_age) {
        this.employeer_age = employeer_age;
    }
    public String getEmployeer_department() {
        return employeer_department;
    }
    public void setEmployeer_department(String employeer_department) {
        this.employeer_department = employeer_department;
    }
    public String getEmployeer_worktype() {
        return employeer_worktype;
    }
    public void setEmployeer_worktype(String employeer_worktype) {
        this.employeer_worktype = employeer_worktype;
    }
    @Override
    public String toString() {
        return "Employeer [employeer_id=" + employeer_id + ", employeer_name="
                + employeer_name + ", employeer_age=" + employeer_age
                + ", employeer_department=" + employeer_department
                + ", employeer_worktype=" + employeer_worktype + "]";
    }



}

package com.mucfc.model;
/**
 * 雇员信息类
 *@author linbingwen
 *@time 2015.5.11
 */
public class Employeer {
    private Integer employeer_id;
    private String employeer_name;
    private Integer employeer_age ;
    private String employeer_department;
    private String employeer_worktype;

    public Employeer() {
        super();
    }
    public Integer getEmployeer_id() {
        return employeer_id;
    }
    public void setEmployeer_id(Integer employeer_id) {
        this.employeer_id = employeer_id;
    }
    public String getEmployeer_name() {
        return employeer_name;
    }
    public void setEmployeer_name(String employeer_name) {
        this.employeer_name = employeer_name;
    }
    public Integer getEmployeer_age() {
        return employeer_age;
    }
    public void setEmployeer_age(Integer employeer_age) {
        this.employeer_age = employeer_age;
    }
    public String getEmployeer_department() {
        return employeer_department;
    }
    public void setEmployeer_department(String employeer_department) {
        this.employeer_department = employeer_department;
    }
    public String getEmployeer_worktype() {
        return employeer_worktype;
    }
    public void setEmployeer_worktype(String employeer_worktype) {
        this.employeer_worktype = employeer_worktype;
    }
    @Override
    public String toString() {
        return "Employeer [employeer_id=" + employeer_id + ", employeer_name="
                + employeer_name + ", employeer_age=" + employeer_age
                + ", employeer_department=" + employeer_department
                + ", employeer_worktype=" + employeer_worktype + "]";
    }



}

Employeer.xml文件，用来放置一些映射，删除了Sql语句了

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

"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="com.mucfc.dao.EmployeerMapper">


 <resultMap type="Employeer" id="employeerResultMap">
    <id property="employeer_id" column="employeer_id"/>
    <result property="employeer_name" column="employeer_name"/>
    <result property="employeer_age" column="employeer_age"/>
    <result property="employeer_department" column="employeer_department"/>
    <result property="employeer_worktype" column="employeer_worktype"/>
 resultMap>

 mapper>

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

"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="com.mucfc.dao.EmployeerMapper">


 <resultMap type="Employeer" id="employeerResultMap">
    <id property="employeer_id" column="employeer_id"/>
    <result property="employeer_name" column="employeer_name"/>
    <result property="employeer_age" column="employeer_age"/>
    <result property="employeer_department" column="employeer_department"/>
    <result property="employeer_worktype" column="employeer_worktype"/>
 resultMap>

 mapper>

2、配置mybatis-config.xml

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

PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">

<configuration>

    <typeAliases>
        <typeAlias alias="Employeer" type="com.mucfc.model.Employeer"/>
    typeAliases>


    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC" />
            <dataSource type="POOLED">
            <property name="driver" value="com.mysql.jdbc.Driver"/>
             <property name="url" value="jdbc:mysql://localhost:3306/test?characterEncoding=UTF-8"/>
            <property name="username" value="root"/>
            <property name="password" value="christmas258@"/>
            dataSource>
        environment>
    environments>


    <mappers>
        <mapper resource="com/mucfc/model/Employeer.xml" />
    mappers>
configuration>

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

PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">

<configuration>

    <typeAliases>
        <typeAlias alias="Employeer" type="com.mucfc.model.Employeer"/>
    typeAliases>


    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC" />
            <dataSource type="POOLED">
            <property name="driver" value="com.mysql.jdbc.Driver"/>
             <property name="url" value="jdbc:mysql://localhost:3306/test?characterEncoding=UTF-8"/>
            <property name="username" value="root"/>
            <property name="password" value="christmas258@"/>
            dataSource>
        environment>
    environments>


    <mappers>
        <mapper resource="com/mucfc/model/Employeer.xml" />
    mappers>
configuration>

3、EmployeerMapper.java在添加Sql映射语句，使用注解的方式来实现

package com.mucfc.dao;

import java.util.List;
import java.util.Map;

import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.ResultMap;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.SelectKey;
import org.apache.ibatis.annotations.Update;

import com.mucfc.model.Employeer;

/**
 * SQL语句映射类
 * @author linbingwen
 * @time 2015.5.11
 */
public interface EmployeerMapper {
    @Select("select * from `t_employeer` where employeer_name like #{employeer_name}")
    @ResultMap("employeerResultMap")
    public List findEmployeerByName(String employeer_name);

    @Select("select* from `t_employeer` where employeer_name=#{0} and employeer_department=#{1}")
    @ResultMap("employeerResultMap")

    public List findEmployeerByNameandDep(String employeer_name,String employeer_department);
    @ResultMap("employeerResultMap")
    @Select("select* from `t_employeer` where employeer_name=#{key1} and employeer_department=#{key2}")
    public List findEmployeerByNameandDep1(Map map);



    @Select("select* from `t_employeer` where employeer_id =#{id}")
    @ResultMap("employeerResultMap")
    public Employeer findEmployeerByID(int id);

     @Insert(" insert into `t_employeer`(employeer_name,employeer_age,employeer_department,employeer_worktype) values(#{employeer_name},#{employeer_age},#{employeer_department},#{employeer_worktype})")
    public void addEmployeer(Employeer employeer);

    @Delete("delete from `t_employeer` where employeer_id = #{employeer_id}")
    public void deleteEmployeer(int id);

    @Update(" update t_employeer set employeer_name = #{employeer_name},employeer_age= #{employeer_age},employeer_department = #{employeer_department} ,employeer_worktype=#{employeer_worktype}  where employeer_id = #{employeer_id}  ")
    public void updateEmployeer(Employeer employeer);

}

package com.mucfc.dao;

import java.util.List;
import java.util.Map;

import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.ResultMap;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.SelectKey;
import org.apache.ibatis.annotations.Update;

import com.mucfc.model.Employeer;

/**
 * SQL语句映射类
 * @author linbingwen
 * @time 2015.5.11
 */
public interface EmployeerMapper {
    @Select("select * from `t_employeer` where employeer_name like #{employeer_name}")
    @ResultMap("employeerResultMap")
    public List findEmployeerByName(String employeer_name);

    @Select("select* from `t_employeer` where employeer_name=#{0} and employeer_department=#{1}")
    @ResultMap("employeerResultMap")

    public List findEmployeerByNameandDep(String employeer_name,String employeer_department);
    @ResultMap("employeerResultMap")
    @Select("select* from `t_employeer` where employeer_name=#{key1} and employeer_department=#{key2}")
    public List findEmployeerByNameandDep1(Map map);



    @Select("select* from `t_employeer` where employeer_id =#{id}")
    @ResultMap("employeerResultMap")
    public Employeer findEmployeerByID(int id);

     @Insert(" insert into `t_employeer`(employeer_name,employeer_age,employeer_department,employeer_worktype) values(#{employeer_name},#{employeer_age},#{employeer_department},#{employeer_worktype})")
    public void addEmployeer(Employeer employeer);

    @Delete("delete from `t_employeer` where employeer_id = #{employeer_id}")
    public void deleteEmployeer(int id);

    @Update(" update t_employeer set employeer_name = #{employeer_name},employeer_age= #{employeer_age},employeer_department = #{employeer_department} ,employeer_worktype=#{employeer_worktype}  where employeer_id = #{employeer_id}  ")
    public void updateEmployeer(Employeer employeer);

}

4、测试使用

（1）单参数查找

/**
 * 查找
 */
public static Employeer findEmployeerById(int id) {
    SqlSession session = null;
    Employeer employeer=null;
    try {
        session = sqlSessionFactory.openSession();
        EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
        employeer=employeerMapper.findEmployeerByID(id);
    } finally {
        session.close();
    }
    return employeer;
}

/**
 * 查找
 */
public static Employeer findEmployeerById(int id) {
    SqlSession session = null;
    Employeer employeer=null;
    try {
        session = sqlSessionFactory.openSession();
        EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
        employeer=employeerMapper.findEmployeerByID(id);
    } finally {
        session.close();
    }
    return employeer;
}

对应SQL语句：

@Select("select* from `t_employeer` where employeer_id =#{id}")
@ResultMap("employeerResultMap")
public Employeer findEmployeerByID(int id);

@Select("select* from `t_employeer` where employeer_id =#{id}")
@ResultMap("employeerResultMap")
public Employeer findEmployeerByID(int id);

调用：

System.out.println(findEmployeerById(10));
System.out.println(findEmployeerById(11));

System.out.println(findEmployeerById(10));
System.out.println(findEmployeerById(11));

结果：

 （2）  添加

/**
 * 增加
 */
public static void addEmployeer(Employeer employeer){
    SqlSession session = null;
    try {
        session = sqlSessionFactory.openSession();
        EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
        employeerMapper.addEmployeer(employeer);
           session.commit() ;
    } finally {
        session.close();
    }

}

/**
 * 增加
 */
public static void addEmployeer(Employeer employeer){
    SqlSession session = null;
    try {
        session = sqlSessionFactory.openSession();
        EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
        employeerMapper.addEmployeer(employeer);
           session.commit() ;
    } finally {
        session.close();
    }

}

对应SQL语句：

@Insert(" insert into `t_employeer`(employeer_name,employeer_age,employeer_department,employeer_worktype) values(#{employeer_name},#{employeer_age},#{employeer_department},#{employeer_worktype})")
ic void addEmployeer(Employeer employeer);

@Insert(" insert into `t_employeer`(employeer_name,employeer_age,employeer_department,employeer_worktype) values(#{employeer_name},#{employeer_age},#{employeer_department},#{employeer_worktype})")
ic void addEmployeer(Employeer employeer);

（3）更改

/**
 * 更改
 */
public static void updateEmployeer(Employeer employeer){
    SqlSession session = null;
    try {
        session = sqlSessionFactory.openSession();
        EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
        employeerMapper.updateEmployeer(employeer);
           session.commit() ;
    } finally {
        session.close();
    }

}

/**
 * 更改
 */
public static void updateEmployeer(Employeer employeer){
    SqlSession session = null;
    try {
        session = sqlSessionFactory.openSession();
        EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
        employeerMapper.updateEmployeer(employeer);
           session.commit() ;
    } finally {
        session.close();
    }

}

对应SQL语句：

@Update(" update t_employeer set employeer_name = #{employeer_name},employeer_age= #{employeer_age},employeer_department = #{employeer_department} ,employeer_worktype=#{employeer_worktype}  where employeer_id = #{employeer_id}  ")
lic void updateEmployeer(Employeer employeer);

@Update(" update t_employeer set employeer_name = #{employeer_name},employeer_age= #{employeer_age},employeer_department = #{employeer_department} ,employeer_worktype=#{employeer_worktype}  where employeer_id = #{employeer_id}  ")
lic void updateEmployeer(Employeer employeer);

（4）删除

/**
 * 删除
 *
 */
public static void deleteEmployeer(int id){
    SqlSession session = null;
    try {
        session = sqlSessionFactory.openSession();
        EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
        employeerMapper.deleteEmployeer(id);
           session.commit() ;
    } finally {
        session.close();
    }
}

/**
 * 删除
 *
 */
public static void deleteEmployeer(int id){
    SqlSession session = null;
    try {
        session = sqlSessionFactory.openSession();
        EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
        employeerMapper.deleteEmployeer(id);
           session.commit() ;
    } finally {
        session.close();
    }
}

对应SQL语句：

@Delete("delete from `t_employeer` where employeer_id = #{employeer_id}")
lic void deleteEmployeer(int id);

@Delete("delete from `t_employeer` where employeer_id = #{employeer_id}")
lic void deleteEmployeer(int id);

（5）列表查询

/**
     * 单参数查询列表
     */
    public static List getEmployeerList(String employeer_name){
        SqlSession session = null;
         List employeers=null;
        try {
            session = sqlSessionFactory.openSession();
            EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
             employeers = employeerMapper.findEmployeerByName(employeer_name);
            session.commit() ;
        } finally {
            session.close();
        }
        return employeers;

    }
    /**
     * 多参数查询列表
     */
    public static List getEmployeerList(String employeer_name,String employeer_department){
        SqlSession session = null;
         List employeers=null;
        try {
            session = sqlSessionFactory.openSession();
            EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
             employeers = employeerMapper.findEmployeerByNameandDep(employeer_name, employeer_department);
            session.commit() ;
        } finally {
            session.close();
        }
        return employeers;

    }
    /**
     * 多参数查询列表，使用map
     */
    public static List getEmployeerList(Map map){
        SqlSession session = null;
         List employeers=null;
        try {
            session = sqlSessionFactory.openSession();
            EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
             employeers = employeerMapper.findEmployeerByNameandDep1(map);
            session.commit() ;
        } finally {
            session.close();
        }
        return employeers;

    }

/**
     * 单参数查询列表
     */
    public static List getEmployeerList(String employeer_name){
        SqlSession session = null;
         List employeers=null;
        try {
            session = sqlSessionFactory.openSession();
            EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
             employeers = employeerMapper.findEmployeerByName(employeer_name);
            session.commit() ;
        } finally {
            session.close();
        }
        return employeers;

    }
    /**
     * 多参数查询列表
     */
    public static List getEmployeerList(String employeer_name,String employeer_department){
        SqlSession session = null;
         List employeers=null;
        try {
            session = sqlSessionFactory.openSession();
            EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
             employeers = employeerMapper.findEmployeerByNameandDep(employeer_name, employeer_department);
            session.commit() ;
        } finally {
            session.close();
        }
        return employeers;

    }
    /**
     * 多参数查询列表，使用map
     */
    public static List getEmployeerList(Map map){
        SqlSession session = null;
         List employeers=null;
        try {
            session = sqlSessionFactory.openSession();
            EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
             employeers = employeerMapper.findEmployeerByNameandDep1(map);
            session.commit() ;
        } finally {
            session.close();
        }
        return employeers;

    }

对应的Sql语句

   @Select("select * from `t_employeer` where employeer_name like #{employeer_name}")
@ResultMap("employeerResultMap")
public List findEmployeerByName(String employeer_name);

   @Select("select* from `t_employeer` where employeer_name=#{0} and employeer_department=#{1}")
@ResultMap("employeerResultMap")
public List findEmployeerByNameandDep(String employeer_name,String employeer_department);
@ResultMap("employeerResultMap")
@Select("select* from `t_employeer` where employeer_name=#{key1} and employeer_department=#{key2}")
public List findEmployeerByNameandDep1(Map map);


@Select("select* from `t_employeer` where employeer_id =#{id}")
@ResultMap("employeerResultMap")
public Employeer findEmployeerByID(int id);

   @Select("select * from `t_employeer` where employeer_name like #{employeer_name}")
@ResultMap("employeerResultMap")
public List findEmployeerByName(String employeer_name);

   @Select("select* from `t_employeer` where employeer_name=#{0} and employeer_department=#{1}")
@ResultMap("employeerResultMap")
public List findEmployeerByNameandDep(String employeer_name,String employeer_department);
@ResultMap("employeerResultMap")
@Select("select* from `t_employeer` where employeer_name=#{key1} and employeer_department=#{key2}")
public List findEmployeerByNameandDep1(Map map);


@Select("select* from `t_employeer` where employeer_id =#{id}")
@ResultMap("employeerResultMap")
public Employeer findEmployeerByID(int id);

测试：

System.out.println("=========================使用单参数查询===========================");
    List employeers=getEmployeerList("张三");
     for(Employeer employeer:employeers){
            System.out.println(employeer);
        }
 System.out.println("=========================使用多单参数查询===========================");
     List employeers1=getEmployeerList("张三","产品二部");
     for(Employeer employeer1:employeers1){
            System.out.println(employeer1);
        }
     System.out.println("=========================使用多单参数map方式查询===========================");
     Map map = new HashMap();
     map.put("key1", "明明");
     map.put("key2", "财会部");
     List employeers2=getEmployeerList(map);
     for(Employeer employeer2:employeers2){
            System.out.println(employeer2);
        }

System.out.println("=========================使用单参数查询===========================");
    List employeers=getEmployeerList("张三");
     for(Employeer employeer:employeers){
            System.out.println(employeer);
        }
 System.out.println("=========================使用多单参数查询===========================");
     List employeers1=getEmployeerList("张三","产品二部");
     for(Employeer employeer1:employeers1){
            System.out.println(employeer1);
        }
     System.out.println("=========================使用多单参数map方式查询===========================");
     Map map = new HashMap();
     map.put("key1", "明明");
     map.put("key2", "财会部");
     List employeers2=getEmployeerList(map);
     for(Employeer employeer2:employeers2){
            System.out.println(employeer2);
        }

结果：