spring练习，在Eclipse搭建的Spring开发环境中，使用set注入方式，实现对象的依赖关系，通过ClassPathXmlApplicationContext实体类获取Bean对象

package com.mhys.bean;
public class Users {
  private String userId;
  private String userName;
  private String password;
  private int age;
  private String address;
  private String flag;
  public Users() {
    super();
  }
  public Users(String userId, String userName, String password, int age, String address, String flag) {
    super();
    this.userId = userId;
    this.userName = userName;
    this.password = password;
    this.age = age;
    this.address = address;
    this.flag = flag;
  }
  @Override
  public String toString() {
    return "Users [userId=" + userId + ", userName=" + userName + ", password=" + password + ", age=" + age
        + ", address=" + address + ", flag=" + flag + "]";
  }
  public String getUserId() {
    return userId;
  }
  public void setUserId(String userId) {
    this.userId = userId;
  }
  public String getUserName() {
    return userName;
  }
  public void setUserName(String userName) {
    this.userName = userName;
  }
  public String getPassword() {
    return password;
  }
  public void setPassword(String password) {
    this.password = password;
  }
  public int getAge() {
    return age;
  }
  public void setAge(int age) {
    this.age = age;
  }
  public String getAddress() {
    return address;
  }
  public void setAddress(String address) {
    this.address = address;
  }
  public String getFlag() {
    return flag;
  }
  public void setFlag(String flag) {
    this.flag = flag;
  }
}

package com.mhys.Dao;
import com.mhys.bean.Users;
public class UsersDao {
  public Users getUserById(String userId){
    Users users = new Users("130006", "杨明金", "123456", 20, "云南", "1");
    return users;
  }
  public Boolean insertUser(Users users){
    System.out.println("插入数据："+users.getUserId()+"，"+users.getUserName()
        +"，"+users.getPassword()+"，"+users.getAge()+"，"
        +users.getAddress()+"，"+users.getFlag());
    return true;
  }
  public Boolean updataUserByid(Users users){
    System.out.println("修改用户编号："+users.getUserId()+"的密码为："+users.getPassword());
    return true;
  }
  public Boolean deleteUserByid(Users users){
    System.out.println("删除用户编号："+users.getUserId()+"的信息");
    return true;
  }
}

package com.mhys.Dao;
import com.mhys.bean.Users;
public class UsersService {
  private UsersDao usersDao;
  public Users getUserInfoById(String userId){
    Users users = usersDao.getUserById(userId);
    return users;
  }
  public Boolean insertUserInfo(Users users) {
    System.out.println("开启事务");
    usersDao.insertUser(users);
    System.out.println("提交事务");
    System.out.println("关闭事务");
    return true;
  }
  public Boolean updataInfo(Users users) {
    System.out.println("开启事务");
    usersDao.updataUserByid(users);
    System.out.println("提交事务");
    System.out.println("关闭事务");
    return true;
  }
  public Boolean deleteInfo(Users users) {
    System.out.println("开启事务");
    usersDao.deleteUserByid(users);
    System.out.println("提交事务");
    System.out.println("关闭事务");
    return true;
  }
  public UsersDao getUsersDao() {
    return usersDao;
  }
  public void setUsersDao(UsersDao usersDao) {
    this.usersDao = usersDao;
  }
}

  <bean id="users" class="com.mhys.bean.Users"></bean>
  <bean id="usersDao" class="com.mhys.Dao.UsersDao"></bean>
  <bean id="usersService" class="com.mhys.Dao.UsersService">
    <property name="usersDao" ref="usersDao"></property>
  </bean>

package com.mhys.test;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.mhys.Dao.UsersService;
import com.mhys.bean.Users;
public class T1_4_3Test {
  public static void main(String[] args) {
    ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
    UsersService usersService = (UsersService) context.getBean("usersService");
    //查询测试
    Users users1 = usersService.getUserInfoById("23");
    System.out.println(users1);
    //创建测试对象
    Users users2 = new Users("2487", "杨明金", "123456", 20, "云南省", "1");
    //添加测试
    Boolean flag1 = usersService.insertUserInfo(users2);
    if (flag1) {
      System.out.println("插入成功！");
    }
    //修改测试
    users1.setPassword("1111");
    Boolean flag2 = usersService.updataInfo(users2);
    if (flag2) {
      System.out.println("修改成功！");
    }
    //删除测试
    Boolean flag3 = usersService.deleteInfo(users2);
    if (flag3) {
      System.out.println("删除成功！");
    }
  }
}