ssj的框架整合实例

SpringMVC +Spring+ SpringJDBC整合实例：
首先设置dao层：
package com.offcn.dao;

import com.offcn.entity.User;
import com.offcn.utils.PageUtils;

import java.util.List;

public interface UserDao {

User selectByName(String userName);

//获取数据-第一个参数当前页，第二个参数是每页显示多少条
List selectAllList(Integer currentPageNo,Integer pageSize);

/**
 *
 * @return
 */
//查出总记录数
Integer selectUserCount();


/**
 *
 * @param user
 * @return
 */
//增加的方法
Integer addUser(User user);

//删除

/**
 *
 * @param id
 * @return
 */
Integer deleteUser(int id);
//修改

/**
 *
 * @param user
 * @return
 */

Integer updateUser(User user);
//查询单个用户
User selectOneUser(int id);


/*----模糊查询-----*/
 List  selectLikeUser(PageUtils pageUtils);
 //模糊查询总记录数
Integer selectLikeCount(PageUtils pageUtils);

}

UserDaoImpl实现层：
package com.offcn.dao.impl;

import com.offcn.dao.UserDao;
import com.offcn.entity.User;
import com.offcn.handle.ArrayResultHandler;
import com.offcn.handle.BeanListResultHandler;
import com.offcn.handle.BeanResultHandler;
import com.offcn.utils.BaseDao;
import com.offcn.utils.EmptyUtils;
import com.offcn.utils.PageUtils;
import org.springframework.stereotype.Repository;

import java.util.ArrayList;
import java.util.List;

@Repository(“userDao”)
public class UserDaoImpl implements UserDao {

//登陆验证
@Override
public User selectByName(String userName) {

    String sql = "select * from user where uname=?";

    return (User) BaseDao.executeQuery(sql,new Object[]{userName}, new BeanResultHandler(User.class));
}



//查询分页
@Override
public List selectAllList(Integer currentPageNo, Integer pageSize) {

    String sql="select * from user limit ?,?";
    Object []objects={(currentPageNo-1)*pageSize,pageSize};

    return (List) BaseDao.executeQuery(sql,objects, new BeanListResultHandler(User.class));
}

@Override
//查询总记录数
public Integer selectUserCount() {
    String sql="select count(1) from user";


    List list =(List) BaseDao.executeQuery(sql, null, new ArrayResultHandler());
  String count= list.get(0)+"";

    return Integer.parseInt(count);
}

@Override
public Integer addUser(User user) {

    String sql="insert into  user(uname,upwd,usex) values(?,?,?)";
    return  BaseDao.executeUpdate(sql,new Object[]{user.getUname(),user.getUpwd(),user.getUsex()});
}

@Override
public Integer deleteUser(int id) {
    String sql="delete from user where uid=?";
    return BaseDao.executeUpdate(sql,new Object[]{id});
}

@Override
public Integer updateUser(User user) {
    String sql="update  user set uname=?,upwd=?,usex=?   where uid=?";
    return BaseDao.executeUpdate(sql,new Object[]{user.getUname(),user.getUpwd(),user.getUsex(),user.getUid()});
}

@Override
public User selectOneUser(int id) {
    String sql="select * from user where uid=?";

    User user = (User) BaseDao.executeQuery(sql, new Object[]{id}, new BeanResultHandler(User.class));
    return user;
}


/*--模糊分页查询--*/
@Override
public List selectLikeUser( PageUtils pageUtils) {
    //String sql="select * from user where 1=1";

    StringBuffer sb=new StringBuffer("select * from user where 1=1");

    //定义一个集合来存占位符的集合
    List