SpringMVC整合Hibernate实现增删改查之按条件查询

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首先我贴出我项目的结构,只完成了条件查询的相关代码，增删改没有写。

1.新建一个动态Web工程，导入相应jar包，编写web.xml配置文件

<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring-*.xml</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<listener>
		<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
	</listener>
	<servlet>
		<servlet-name>springMVC</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springmvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springMVC</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

　　2.配置springmvc.xml

<!-- 配置自动扫描的包 -->
	<context:component-scan base-package="com.tideway.springmvc"></context:component-scan>
	
	<mvc:annotation-driven/>
	
	<!-- 配置视图解析器 -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/views/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>

　hibernate配置文件：hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
        <property name="hibernate.show_sql">true</property>
        <property name="hibernate.format_sql">true</property>
        <property name="hibernate.hbm2ddl.auto">update</property>
        <mapping class="com.tideway.springmvc.entity.User"/>
    </session-factory>
</hibernate-configuration>

配置数据源，连接池c3p0，    spring-common.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">

    <!-- 配置数据源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver" />
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/attendance" />
        <property name="user" value="root" />
        <property name="password" value="密码" />
    </bean>

    <!-- 配置SessionFactory 通过spring提供的LocalSessionFactoryBean进行配置 -->
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <!-- 配置数据源 -->
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
    </bean>
    <!-- 配置一个事务管理器 -->
    <bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
    <!-- 添加一个通知取别名，然后决定管理哪一个事务管理器,***只是查询的话用不到事物 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="get*" read-only="true" />
            <tx:method name="*" />
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:pointcut expression="execution(* com.tideway.springmvc.service.*.*(..))"
            id="txPointcut" />
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointcut" />
    </aop:config>
    

</beans>

　3.创建实体类User.java

package com.tideway.springmvc.entity;

import java.util.Date;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

import org.hibernate.annotations.GenericGenerator;
@Entity
@Table(name="t_attendance")
public class User {
	private int id;
	private int enID;
	private String name;
	private Date datetime;
	
	@Id
	@GenericGenerator(name="id",strategy="identity")
	@GeneratedValue(generator="id")
	@Column(name="id",unique=true,nullable=false)
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	@Column(name="EnID")
	public int getEnID() {
		return enID;
	}
	public void setEnID(int enID) {
		this.enID = enID;
	}
	@Column(name="Name")
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	@Column(name="DateTime")
	public Date getDatetime() {
		return datetime;
	}
	public void setDatetime(Date datetime) {
		this.datetime = datetime;
	}
	

}

　　4.dao层接口

package com.tideway.springmvc.dao;

import java.util.List;

import com.tideway.springmvc.entity.User;

public interface UserDao {
	/**
	 * dao层接口
	 * 查询打卡记录
	 * @param EnID 工号
	 * @param dateafter 起止日期
	 * @param datebefore 截至日期
	 * @return
	 */
	public List<User> getUser(String EnID,String dateafter,String datebefore);

}

　　5.dao层接口实现类

package com.tideway.springmvc.daoimpl;

import java.util.List;
import org.hibernate.Query;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import com.tideway.springmvc.dao.UserDao;
import com.tideway.springmvc.entity.User;

//@Repository用于标注数据访问组件，即DAO组件
@Repository
public class UserDaoImpl implements UserDao {
    @Autowired
    private SessionFactory sessionFactory;

    /**
     * 查询dao层接口实现类
     * 进行动态拼接查询，拼接hql语句进行多条件查询
     */
    public List<User> getUser(String EnID, String dateafter, String datebefore) {
        String hql = "from User where 1=1";
        if(EnID!=null&&!("").equals(EnID)){
            hql=hql+" and EnID='"+EnID+"'";
        }
        if(dateafter!=null&&!("").equals(dateafter)){
            hql=hql+" and datetime>='"+dateafter+"'";
        }
        if(datebefore!=null&&!("").equals(datebefore)){
            hql=hql+" and datetime<='"+datebefore+"'";
        }
        Query query = sessionFactory.getCurrentSession().createQuery(hql);
        List<User> list=query.list();
        return list;
    }

}

6.service层接口

package com.tideway.springmvc.service;

import java.util.List;

import com.tideway.springmvc.entity.User;

public interface UserService {
    
    /**
     * 查询的Service层接口
     * @param EnID 工号
     * @param dateafter 起止日期
     * @param datebefore 截至日期
     * @return
     */
    public List<User> getUser(String EnID,String dateafter,String datebefore);
}

7.service层接口实现类

package com.tideway.springmvc.serviceimpl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.tideway.springmvc.dao.UserDao;
import com.tideway.springmvc.entity.User;
import com.tideway.springmvc.service.UserService;

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserDao userDao;
    
    /**
     * 查询Service层接口实现类
     */
    public List<User> getUser(String EnID,String dateafter, String datebefore){
        return userDao.getUser(EnID, dateafter, datebefore);
    }



}

8.controller层

package com.tideway.springmvc.controller;

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

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import com.tideway.springmvc.entity.User;
import com.tideway.springmvc.service.UserService;

@Controller
public class UserController {
    
    @Autowired
    private UserService userService;
    /**
     * 控制器
     * @param EnID 工号
     * @param dateafter 起止日期
     * @param datebefore 截至日期
     * @param model 返回的数据
     * @return
     */
    @RequestMapping(value="/user/getuser.do",method=RequestMethod.GET)
    public String getUser(String EnID,String dateafter, String datebefore,Model model){
        try {
            List<User> list=new ArrayList<User>();
            list=userService.getUser(EnID, dateafter, datebefore);
            model.addAttribute("lists", list);
//            System.out.println("list.size="+list.size());
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return "list";
    }

}

9.index.jsp查询条件表单提交

<body>
    <form action="/SpringMVC04/user/getuser.do">
        工号：<input type="text" name="EnID" /> 
        起止日期：<input type="date"name="dateafter" />
        截止日期：<input type="date"name="datebefore" />
        <input type="submit" value="查询" />
    </form>
</body>

10.显示查询结果页面list.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

    <table border="1" style=" 50%">
        <tr>
            <th>ID</th>
            <th>工号</th>
            <th>名字</th>
            <th>签到时间</th>
            <th>操作</th>
        </tr>
        <c:forEach var="item" items="${lists}">
            <tr>
                <td>${item.id}</td>
                <td>${item.enID}</td>
                <td>${item.name}</td>
                <td>${item.datetime}</td>
                <td><a href="">编辑</a></td>
            </tr>
        </c:forEach>
    </table>
</body>
</html>