ssm框架+PageHelper插件实现分页查询功能

通过搭建ssm框架，然后通过mybatis的分页插件pagehelp进行分页查询。
源码：https://gitee.com/smfx1314/pagehelper

看一下项目结构：

首先创建一个maven工程，pom中引入相关jar包

<dependencies>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-core</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-aop</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-aspects</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-beans</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-context</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-expression</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-jdbc</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-test</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-tx</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-web</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.springframework</groupid>
            <artifactid>spring-webmvc</artifactid>
            <version>4.3.2.release</version>
        </dependency>
        <dependency>
            <groupid>org.mybatis</groupid>
            <artifactid>mybatis-spring</artifactid>
            <version>1.3.0</version>
        </dependency>
        <dependency>
            <groupid>org.mybatis</groupid>
            <artifactid>mybatis</artifactid>
            <version>3.4.4</version>
        </dependency>
        <dependency>
            <groupid>commons-io</groupid>
            <artifactid>commons-io</artifactid>
            <version>2.4</version>
        </dependency>
        <dependency>
            <groupid>org.apache.commons</groupid>
            <artifactid>commons-lang3</artifactid>
            <version>3.4</version>
        </dependency>
        <dependency>
            <groupid>commons-logging</groupid>
            <artifactid>commons-logging</artifactid>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupid>org.apache.logging.log4j</groupid>
            <artifactid>log4j-core</artifactid>
            <version>2.9.1</version>
        </dependency>
        <dependency>
            <groupid>org.slf4j</groupid>
            <artifactid>slf4j-log4j12</artifactid>
            <version>1.7.21</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupid>aopalliance</groupid>
            <artifactid>aopalliance</artifactid>
            <version>1.0</version>
        </dependency>
        <dependency>
            <groupid>mysql</groupid>
            <artifactid>mysql-connector-java</artifactid>
            <version>5.1.38</version>
        </dependency>
        <dependency>
            <groupid>com.mchange</groupid>
            <artifactid>c3p0</artifactid>
            <version>0.9.5.2</version>
        </dependency>
        <dependency>
            <groupid>javax.servlet</groupid>
            <artifactid>jstl</artifactid>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupid>javax.servlet</groupid>
            <artifactid>javax.servlet-api</artifactid>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupid>javax.servlet.jsp</groupid>
            <artifactid>javax.servlet.jsp-api</artifactid>
            <version>2.2.1</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupid>taglibs</groupid>
            <artifactid>standard</artifactid>
            <version>1.1.2</version>
        </dependency>
        <dependency>
            <groupid>com.github.pagehelper</groupid>
            <artifactid>pagehelper</artifactid>
            <version>5.1.2</version>
        </dependency>

    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupid>org.apache.maven.plugins</groupid>
                <artifactid>maven-compiler-plugin</artifactid>
                <version>3.6.1</version>
                <configuration>
                    <encoding>utf-8</encoding>
                </configuration>
            </plugin>

            <plugin>
                <groupid>org.apache.tomcat.maven</groupid>
                <artifactid>tomcat7-maven-plugin</artifactid>
                <version>2.2</version>
                <configuration>
                    <uriencoding>utf-8</uriencoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

pom.xml中引入page分页的jar包

   <dependency>
            <groupid>com.github.pagehelper</groupid>
            <artifactid>pagehelper</artifactid>
            <version>5.1.2</version>
        </dependency>    

jar包这里就引入完了。下面引入配置文件

applicationcontext.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:aop="http://www.springframework.org/schema/aop"
 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.xsd 
                     http://www.springframework.org/schema/tx 
                     http://www.springframework.org/schema/tx/spring-tx.xsd 
                     http://www.springframework.org/schema/aop 
                     http://www.springframework.org/schema/aop/spring-aop.xsd
                     http://www.springframework.org/schema/context 
                     http://www.springframework.org/schema/context/spring-context.xsd">    
    <!-- 扫描注解的包 -->
    <context:component-scan base-package="com.jiangfx.service"/>
    <!-- 配置数据库 -->
    <!-- 加载配置文件 -->
    <bean id="datasource" class="com.mchange.v2.c3p0.combopooleddatasource">
        <property name="driverclass" value="com.mysql.jdbc.driver"></property>
        <property name="jdbcurl" value="jdbc:mysql://localhost:3306/pagehelper"></property>
        <property name="user" value="root"></property>
        <property name="password" value="1234"></property>
    </bean>                 
    <!-- 配置sqlsessionfactory, 并将数据源注入 -->
    <bean id="sqlsessionfactory" class="org.mybatis.spring.sqlsessionfactorybean">
        <!-- 引入数据源 -->
        <property name="datasource" ref="datasource"></property>
        <!--载入mybatis配置文件-->
        <property name="configlocation" value="classpath:mybatis-config.xml"/>
        <!--载入配置mapper映射的xml-->
         <property name="mapperlocations" value="classpath:com/jiangfx/mapper/*.xml"/>
    </bean> 
    <!-- 配置映射接口 -->
    <bean class="org.mybatis.spring.mapper.mapperscannerconfigurer">
        <property name="basepackage" value="com.jiangfx.mapper"/>
        <property name="sqlsessionfactorybeanname" value="sqlsessionfactory"></property>
    </bean>
    <!-- 配置声明式事务 -->
    <bean id="transactionmanager" class="org.springframework.jdbc.datasource.datasourcetransactionmanager">
        <property name="datasource" ref="datasource"></property>
    </bean>  
    <tx:annotation-driven transaction-manager="transactionmanager"/>
    
    <!-- 配置aop -->
    
    
</beans>

springmvc.xml

<?xml version="1.0" encoding="utf-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
    xmlns:context="http://www.springframework.org/schema/context" 
    xsi:schemalocation="
        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
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
        <!-- 扫描注解的包 -->
        <context:component-scan base-package="com.jiangfx.controller"/>
        <!-- 开启注解 -->
        <mvc:annotation-driven/>
        <!--静态资源访问-->
        <mvc:default-servlet-handler/>

        <!-- 配置视图解析器 -->
        <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

<?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>
    <!-- 引入 pagehelper插件 -->
<!--注意这里要写成pageinterceptor, 5.0之前的版本都是写pagehelper, 5.0之后要换成pageinterceptor-->

    <plugins>  
        <plugin interceptor="com.github.pagehelper.pageinterceptor">  
            <!--reasonable：分页合理化参数，默认值为false。
                当该参数设置为 true 时，pagenum<=0 时会查询第一页，
                pagenum>pages（超过总数时），会查询最后一页。
                默认false 时，直接根据参数进行查询。-->  
            <property name="reasonable" value="true"/>  
        </plugin>  
    </plugins> 
</configuration>

以上你也可以直接配置的applicationcontext中。

web.xml

<?xml version="1.0" encoding="utf-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemalocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="webapp_id" version="3.1">
  <display-name>pagehelper</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <listener>
    <listener-class>org.springframework.web.context.contextloaderlistener</listener-class>
  </listener>
  <context-param>
    <param-name>contextconfiglocation</param-name>
    <param-value>classpath:applicationcontext.xml</param-value>
  </context-param>
  <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>
  <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>
  </filter>
  <filter-mapping>
    <filter-name>encodingfilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

controller:

package com.jiangfx.controller;

import java.util.list;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.stereotype.controller;
import org.springframework.ui.modelmap;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestmethod;
import org.springframework.web.bind.annotation.requestparam;

import com.github.pagehelper.pagehelper;
import com.github.pagehelper.pageinfo;
import com.jiangfx.entity.user;
import com.jiangfx.service.userservice;

@controller
public class usercontroller {
    
    @autowired
    private userservice pageservice;
    
    /**
     * 分页查询
     */
    @requestmapping(value="/list",method=requestmethod.get)
    public string pagelist(modelmap map,@requestparam(defaultvalue="1",required=true,value="pageno") integer pageno){
        integer pagesize=4;//每页显示记录数
        //分页查询
        pagehelper.startpage(pageno, pagesize);
        list<user> userlist = pageservice.list();//获取所有用户信息
        pageinfo<user> pageinfo=new pageinfo<user>(userlist);
        map.addattribute("pageinfo", pageinfo);

        return "list";
    }

}

serviceimpl:接口自己定义，这里就不贴了

package com.jiangfx.service.impl;

import java.util.list;

import org.springframework.beans.factory.annotation.autowired;
import org.springframework.stereotype.service;

import com.jiangfx.entity.user;
import com.jiangfx.mapper.usermapper;
import com.jiangfx.service.userservice;

@service
public class userserviceimpl implements userservice {

    @autowired
    private usermapper usermapper;
    
    /**
     * 查询所有用户
     * @return
     */
    @override
    public list<user> list() {

        return usermapper.getalluser();
    }

}

entity:

package com.jiangfx.entity;

public class user {

    private integer id;
    private string username;
    private string sex;
    private string city;
    public integer getid() {
        return id;
    }
    public void setid(integer id) {
        this.id = id;
    }
    public string getusername() {
        return username;
    }
    public void setusername(string username) {
        this.username = username;
    }
    public string getsex() {
        return sex;
    }
    public void setsex(string sex) {
        this.sex = sex;
    }
    public string getcity() {
        return city;
    }
    public void setcity(string city) {
        this.city = city;
    }
    @override
    public string tostring() {
        return "user [id=" + id + ", username=" + username + ", sex=" + sex + ", city=" + city + "]";
    }
    
}

mapper

package com.jiangfx.mapper;

import java.util.list;

import com.jiangfx.entity.user;

public interface usermapper {

    //查询所有用户
    list<user> getalluser();
}

mapper.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="com.jiangfx.mapper.usermapper">
    <!-- 查询博客 -->
    <select id="getalluser" resulttype="com.jiangfx.entity.user">
        select * from user
    </select>
</mapper>

下面是jsp

index.jsp

<%@ page language="java" contenttype="text/html; charset=utf-8"
    pageencoding="utf-8"%>
<!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>
<a href="list" rel="external nofollow" >分页查询</a>
</body>
</html>

返回list

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" %>
<!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>
  <center>
        <table width="200" border="1">
          <tr>
            <th scope="col">id</th>
            <th scope="col">姓名</th>
            <th scope="col">性别</th>
            <th scope="col">城市</th>
          </tr>
          <c:foreach items="${pageinfo.list}" var="user">
          <tr>
            <td>${user.id}</td>
            <td>${user.username}</td>
            <td>${user.sex}</td>
            <td>${user.city}</td>
          </tr>
          </c:foreach>
        </table>
        <p>当前 ${pageinfo.pagenum }页,总${pageinfo.pages }
                页,总 ${pageinfo.total } 条记录</div></p>
        <a href="list?pageno=${pageinfo.firstpage}" rel="external nofollow" >第一页</a>
        <c:if test="${pageinfo.haspreviouspage }">
            <a href="list?pageno=${pageinfo.pagenum-1}" rel="external nofollow" >上一页</a>
        </c:if>
      
        <c:if test="${pageinfo.hasnextpage }">
            <a href="list?pageno=${pageinfo.pagenum+1}" rel="external nofollow" >下一页</a>
        </c:if>
        
        <a href="list?pageno=${pageinfo.lastpage}" rel="external nofollow" >最后页</a>
    </center>
  </body>
</html>

访问localhost:8080/pagehelper

点击分页查询结果：

以上就是ssm框架+pagehelper实现分页查询功能的详细内容，更多关于ssm pagehelper分页查询的资料请关注其它相关文章！