• springMVC+mybatis


    xml配置文件:

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app version="2.5" 
    	xmlns="http://java.sun.com/xml/ns/javaee" 
    	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
      <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
      </welcome-file-list>
      
    	<context-param>
    		<param-name>contextConfigLocation</param-name>
    		<param-value>classpath:applicationContext-*.xml</param-value>
    	</context-param>
    	<listener>
    		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    	</listener>
    	<filter>
    	    <filter-name>encodingFilter</filter-name>
    	    <filter-class>
    	        org.springframework.web.filter.CharacterEncodingFilter
    	    </filter-class>
    	    <init-param> 
    	        <param-name>encoding</param-name>
    	        <param-value>UTF-8</param-value>
    	    </init-param>
    	    <init-param>
    	        <param-name>forceEncoding</param-name>
    	        <param-value>true</param-value>
    	    </init-param>
        </filter>
        <filter-mapping> 
            <filter-name>encodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    	
    	
    	<servlet>
    		<servlet-name>DispatcherServlet</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>classpath:DispatcherServlet-servlet.xml</param-value>
    		</init-param>
    		<load-on-startup>1</load-on-startup>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>DispatcherServlet</servlet-name>
    		<url-pattern>/</url-pattern>
    	</servlet-mapping>
    	  
    	
    	
    
    	<context-param>
    		<param-name>log4jConfigLocation</param-name>
    		<param-value>classpath:log4j.properties</param-value>
    	</context-param>
    	<listener>
    		<listener-class>
    			org.springframework.web.util.Log4jConfigListener
    		</listener-class>
    	</listener>
    	
    	
      <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
      </welcome-file-list>
    </web-app>
    

    applicationContext-mybatis.xml配置文件(spring,mybatis集成的配置文件)

    <?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:aop="http://www.springframework.org/schema/aop"  
                xmlns:p="http://www.springframework.org/schema/p"  
                xmlns:tx="http://www.springframework.org/schema/tx"  
                xmlns:context="http://www.springframework.org/schema/context"  
                xsi:schemaLocation="   
                    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd   
                    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd   
                    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">  
         
    
    
    	<!-- 读取配置文件  两种方法 -->
    	<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">    
    	    <property name="locations">    
    	        <list>    
    	            <value>classpath*:jdbc.properties</value>    
    	        </list>    
    	    </property>    
    	</bean> 
    	
    	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" scope="singleton">
    		<property name="driverClassName" value="${driver}"/>
    		<property name="url" value="${url}?useUnicode=true&characterEncoding=utf8"/>
    		<property name="username" value="${username}"/>
    		<property name="password" value="${password}"/>
    		
    	</bean>
    	
    	<!-- 扫描事务注解 -->
    	<tx:annotation-driven/>
    	<!-- 事务管理 -->
    	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    		<property name="dataSource" ref="dataSource"></property>
    	</bean>
    
    
    	<!-- 配置 MyBatis sqlSessionFactory -->
    	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    		<property name="dataSource" ref="dataSource"></property>
    		<property name="configLocation" value="classpath:mybatis-config.xml"></property>
    	</bean>
    	
    	
    	<!-- 生成mapper实例 -->
    	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    		<property name="basePackage" value="dao"></property>
    	</bean>
    
    
    
    
    
    
    </beans>
    

    DispatcherServlet-servlet.xml配置文件(spring)

    <?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:mvc="http://www.springframework.org/schema/mvc"
        xmlns:p="http://www.springframework.org/schema/p"
        xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="
        	http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc.xsd
            http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context.xsd">
            
            <!-- 扫描注解类 -->
            <context:component-scan base-package="dao,pojo,service,controller"></context:component-scan>
            
            <!-- 视图解析器 -->
    	    <bean  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    	      <property name="prefix" value="/WEB-INF/jsp/"></property>
    	      <property name="suffix" value=".jsp"></property>
    	    </bean>
    		        
            
            
            
    </beans>
    

    mybatis-config.xml 配置文件(mybatis)

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE configuration
    PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-config.dtd">
    
    <configuration>
    
    	<!-- 定义实体类的别名 -->
    	<typeAliases>
    		<package name="pojo"/>	
    	</typeAliases>
    
    </configuration>
    

    =====================


    @Controller
    public class IndexController {
        @Resource
        private UserService userService;
        
        
        @RequestMapping(value="/index",method=RequestMethod.GET)
        public String index(){
            
            return "index";
        }

    --------------------------------------


    @Service
    public class UserServiceImpl implements UserService {
        
        @Resource
        private UserMapper userMapper;
       

    =============随便写的分页,没注重格式,只是实现功能====================================

     jsp

    <%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
    <!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>
    
    
    <c:forEach var="user" items="${userlist}">
    	
    		${user.id}  
    		${user.userName}  
    		${user.password}<br/>
    
    
    </c:forEach>
    <a href="<%=pageContext.getServletContext().getContextPath()%>/userListPage/1">首页</a>
    <a href="<%=pageContext.getServletContext().getContextPath()%>/userListPage/${page.beginIndex-1}">上一页</a>  
    <a href="<%=pageContext.getServletContext().getContextPath()%>/userListPage/${page.beginIndex+1}">下一页</a>
    <a href="<%=pageContext.getServletContext().getContextPath()%>/userListPage/${page.totalPageCount}">尾页</a> 
    总共有${page.totalCount}条记录,
    当前第${page.beginIndex}页
    </body>
    </html>
    

     Controller

    @Controller //类似Struts的Action
    public class UserController {
    	private Logger loger = Logger.getLogger(UserController.class);
    	@Resource
    	private UserService userService;
    	
    	@RequestMapping(value="/userListPage") 
    	public String userListPage(){
    		return "redirect:/userListPage/1";
    	}
    	
    	@RequestMapping(value="/userListPage/{beginIndex}",method=RequestMethod.GET) 
    	public ModelAndView userListPage(@PathVariable String beginIndex){
    		ModelAndView modelAndView = new ModelAndView("userList");
    		Page page=new Page();
    		page.setTotalCount(userService.getUserCount());
    		if(Integer.valueOf(beginIndex)==1||Integer.valueOf(beginIndex)<1){
    			page.setBeginIndex(1);
    		}else if(Integer.valueOf(beginIndex)>page.getTotalPageCount()){
    			page.setBeginIndex(page.getTotalPageCount());
    		}else{
    			page.setBeginIndex(Integer.valueOf(beginIndex));
    		}
    		List<User> userlist=userService.getUserListPage((page.getBeginIndex()-1)*page.getPageSize(),page.getPageSize());
    		modelAndView.addObject("userlist", userlist);
    		modelAndView.addObject("page", page);
    		return modelAndView;
    	}
    	
    

     page工具类

    public class Page {
    	
    	private Integer totalCount;//总记录数
    	private Integer totalPageCount;//总页数
    	private Integer pageSize=3;//页面长度  
    	private Integer beginIndex;//分页开始的位置
    	
    	public Integer getTotalCount() {
    		return totalCount;
    	}
    	public void setTotalCount(Integer totalCount) {
    		this.totalCount = totalCount;
    		setTotalPageCount();
    	}
    	public Integer getTotalPageCount() {
    		return totalPageCount;
    	}
    	public void setTotalPageCount() {
    		if(totalCount%pageSize>0){
    			this.totalPageCount = totalCount/pageSize+1;
    		}else{
    			this.totalPageCount = totalCount/pageSize;
    		}
    		
    		
    	}
    	public Integer getPageSize() {
    		return pageSize;
    	}
    	public void setPageSize(Integer pageSize) {
    		this.pageSize = pageSize;
    	}
    	public Integer getBeginIndex() {
    		return beginIndex;
    	}
    	public void setBeginIndex(Integer beginIndex) {
    		this.beginIndex = beginIndex;
    	}
    	
    	
    	
    	
    }
    

    serviceImpl

    	public List<User> getUserListPage(Integer beginIndex, Integer pageSize) {
    		// TODO Auto-generated method stub
    		return mapper.getUserListPage(beginIndex, pageSize);
    	}
    
    	public Integer getUserCount() {
    		// TODO Auto-generated method stub
    		return mapper.getUserCount();
    	}
    

    userMapper.java

    public interface UserMapper {
    	List<User> getUserListPage(Integer beginIndex,Integer pageSize);
    	Integer getUserCount();
    }
    

    userMapper.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">
    
    <mapper namespace="org.project.dao.user.UserMapper">
    
       <select id="getUserListPage" resultType="User" parameterType="java.lang.Integer">
    		select * from user limit #{0},#{1}
        </select>
        <select id="getUserCount" resultType="java.lang.Integer">
    		select count(*) from user
        </select>
    	
    </mapper>  
    

     还一个pojo,user表对应的数据库表的相关字段

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  • 原文地址:https://www.cnblogs.com/m97i/p/7613781.html
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