springmvc+mybatis+easyui分页

道德三黄五帝，功名夏侯商周。五霸七雄闹春秋，顷刻兴亡过手。清时几行名姓，北芒无数荒丘。前人播种后人收，说什么原创与否。

今天和大家分享一下springmvc+mybatis+easyui的分页实现。springmvc，mybatis的优缺点不做太多敖述大家都比较了解了，ssm框架整合的例子网上也有很多了，为什么还要写这篇文章那，主要是觉得大多过于零散配置方式又是千差万别，总结一下本文希望对遇到此问题的人有所帮助，前人播种后人收。当然程序开发没有觉得正确，谁也说不出一个正确的实现第N行代码是什么，由于水平有限，难免有纰漏之处，希望大家多多指点。

正文开始之前和大家说说为什么选择easyui，个人从13年开始管理系统前端技术使用easyui非常多，easyui很对得起easy这个词，上手很容易，浏览器兼容性优良，文档内容完善且有中文，datagrid请求数据参数简单方便。

本文应用到技术相关版本如下：

技术	版本
Spring	4.0.2.RELEASE
Mybatis	3.2.6
jquery	jquery -1.11.1.js
EasyUI	1.4
Maven	2.5

技术思路：

1. 用Springmvc构建 Web应用程序的全功能 MVC 模块

2. ORM框架选用mybatis，mybatis相对ibatis增加了mapper功能，大大简化了开发的工作量，但是spring和mybatis整合时没有了类似整合ibatis时的queryForList(String statementName,Object parameterObject, int skipResults, intmaxResults)方法，对于数据范围的控制需要借助mybatis的Interceptor实现。

3. 结合思路2中提到的特点，需要定义StatementHandler类型的Interceptor，同时本实例将分页相关的查询参数封装为PageUtil类。在该拦截器中判断如果参数类型为PageUtil则需要对sql进行处理，将其构造为分页模式的sql，oracle可用利用rownum，mysql利用limit函数。同时我们还可以在拦截器中获取到查询数据的总记录数，这样是相对于spring整合ibatis的又一方便之处。

4. PageUtil中封装分页相关的参数。由于easyui在请求时使用rows（Int类型）表示每页显示的记录数，page表示当前页，而响应时需要使用rows（List类型）表示查询结果，total表示记录数，所以PageUtil中的setRows，getRows方法不能简单的依靠IDE自动生成了。同时为了方便将PageUtil作为了控制层返回值，所以PageUtil类还需注意对其转换为符合easyuidatagrid标准的json格式时，不必要参数的控制。

5. Spring自动扫描mybatis的xml文件，自动扫描mapper类，service层控制事务。

程序代码如下：

1. Maven pom.xml文件内容如下

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.asiainfo</groupId><artifactId>cbar</artifactId><version>0.0.1-SNAPSHOT</version><packaging>war</packaging><name>bomcreport2</name><properties><!-- spring版本号 --><spring.version>4.0.2.RELEASE</spring.version><!-- mybatis版本号 --><mybatis.version>3.2.6</mybatis.version><!-- log4j日志文件管理包版本 --><slf4j.version>1.7.7</slf4j.version><log4j.version>1.2.17</log4j.version></properties><dependencies><dependency><groupId>org.apache.maven.plugins</groupId><artifactId>maven-resources-plugin</artifactId><version>2.4.1</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.11</version><!-- 表示开发的时候引入，发布的时候不会加载此包 --><scope>test</scope></dependency><!-- spring核心包 --><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-oxm</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId><version>${spring.version}</version><type>jar</type><scope>compile</scope></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context-support</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>${spring.version}</version></dependency><!-- mybatis核心包 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>${mybatis.version}</version></dependency><!-- mybatis/spring包 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.2.2</version></dependency><!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 --><dependency><groupId>commons-dbcp</groupId><artifactId>commons-dbcp</artifactId><version>1.2.2</version></dependency><!-- JSTL标签类 --><dependency><groupId>jstl</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><!-- 日志文件管理包 --><!-- log start --><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>${log4j.version}</version></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId><version>${slf4j.version}</version></dependency><dependency><groupId>org.slf4j</groupId><artifactId>slf4j-log4j12</artifactId><version>${slf4j.version}</version></dependency><!-- log end --><!-- 上传组件包 --><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.3.1</version></dependency><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.4</version></dependency><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId><version>1.9</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.0.1</version><scope>provided</scope></dependency><dependency>  <groupId>commons-beanutils</groupId>  <artifactId>commons-beanutils</artifactId>  <version>1.9.2</version>  </dependency><dependency>  <groupId>com.fasterxml.jackson.core</groupId>  <artifactId>jackson-databind</artifactId>  <version>2.5.0</version>  </dependency> <dependency>  <groupId>org.codehaus.jackson</groupId>  <artifactId>jackson-mapper-asl</artifactId>  <version>1.9.13</version>  </dependency></dependencies><build><defaultGoal>compile</defaultGoal><sourceDirectory>src/main/java</sourceDirectory><resources><resource><directory>src/main/java</directory><excludes><exclude>**/*.java</exclude></excludes></resource></resources><plugins><plugin><artifactId>maven-compiler-plugin</artifactId><version>2.3.2</version><configuration><source>1.6</source><target>1.6</target></configuration></plugin><plugin><artifactId>maven-war-plugin</artifactId><version>2.2</version><configuration><warSourceDirectory>${basedir}/WebRoot</warSourceDirectory><version>3.0</version><failOnMissingWebXml>false</failOnMissingWebXml></configuration></plugin></plugins></build>
</project>

2. spring-config.xml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:context="http://www.springframework.org/schema/context"xmlns:aop="http://www.springframework.org/schema/aop" xmlns:p="http://www.springframework.org/schema/p"xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop-3.0.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-3.0.xsd"><context:annotation-config /><!-- 自动扫描com.asia包先相关类 --><context:component-scan base-package="com.asia" ><!-- <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> --></context:component-scan><bean id="propertyConfigurer"  class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  <property name="location" value="classpath:base.properties" />  </bean><!-- 定义数据源 --><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"  destroy-method="close">  <property name="driverClassName" value="${driverClassName}" />  <property name="url" value="${DBTUrl}" />  <property name="username" value="${DBUser}" />  <property name="password" value="${DBPassword}" />  <!-- 初始化连接大小 -->  <property name="initialSize" value="${initialSize}"></property>  <!-- 连接池最大数量 -->  <property name="maxActive" value="${maxActive}"></property>  <!-- 连接池最大空闲 -->  <property name="maxIdle" value="${maxIdle}"></property>  <!-- 连接池最小空闲 -->  <property name="minIdle" value="${minIdle}"></property>  <!-- 获取连接最大等待时间 -->  <property name="maxWait" value="${maxWait}"></property>  </bean><!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->  <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  <property name="dataSource" ref="dataSource" />  <!-- 自动扫描mapping.xml文件  --> <property name="mapperLocations" value="classpath:mapping/*.xml"></property><property name="plugins"><array><bean class="com.asia.util.mybatispage.PageInterceptor"><property name="properties"><value>databaseType=oracle</value></property></bean></array></property></bean>  <!--  DAO接口所在包名，Spring会自动查找其下的类   --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  <property name="basePackage" value="com.asia.*.mapper" />  <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  </bean>  <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx   --><bean id="transactionManager"  class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  <property name="dataSource" ref="dataSource" />  </bean><tx:advice id="userTxAdvice" transaction-manager="transactionManager"><tx:attributes><tx:method name="delete*" propagation="REQUIRED" read-only="false" rollback-for="java.lang.Exception" no-rollback-for="java.lang.RuntimeException"/><tx:method name="add*" propagation="REQUIRED" read-only="false" rollback-for="java.lang.Exception" /><tx:method name="insert*" propagation="REQUIRES_NEW" read-only="false" rollback-for="java.lang.Exception" /><tx:method name="update*" propagation="REQUIRED" read-only="false" rollback-for="java.lang.Exception" /><tx:method name="modify*" propagation="REQUIRES_NEW" read-only="false" rollback-for="java.lang.Exception" /><tx:method name="find*" propagation="SUPPORTS"/><tx:method name="get*" propagation="SUPPORTS"/><tx:method name="select*" propagation="SUPPORTS"/></tx:attributes></tx:advice><aop:config><aop:pointcut id="pc" expression="execution(public * com.asia.*.service.*.*(..))" /> <!-- 把事务控制在Service层 --><aop:advisor pointcut-ref="pc" advice-ref="userTxAdvice" /></aop:config>
</beans>

3. spring-servlet.xml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:p="http://www.springframework.org/schema/p"xmlns:context="http://www.springframework.org/schema/context"xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/utilhttp://www.springframework.org/schema/util/spring-util-3.0.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsdhttp://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> -->
<beans xmlns="http://www.springframework.org/schema/beans"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:p="http://www.springframework.org/schema/p"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://www.springframework.org/schema/beans    http://www.springframework.org/schema/beans/spring-beans-3.0.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-3.0.xsd"><mvc:annotation-driven />  <!-- <context:annotation-config /> --><context:component-scan base-package="com.asia.*.controller"><context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" /></context:component-scan><!-- <context:component-scan base-package="com.asia.*.controller"  /> -->
<!--     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/" p:suffix=".jsp" />  -->  <!-- <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">  <property name="supportedMediaTypes">  <list>  <value>text/html;charset=UTF-8</value>  </list>  </property>  </bean>  启动Spring MVC的注解功能，完成请求和注解POJO的映射  <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">  <property name="messageConverters">  <list>  <ref bean="mappingJacksonHttpMessageConverter" />json转换器  </list>  </property>  </bean>  -->
<!--     <bean id="defaultViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:order="3"><property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /><property name="contentType" value="text/html" /><property name="prefix" value="/" /><property name="suffix" value=".jsp" /></bean> --><!-- <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver"><property name="mediaTypes"><map><entry key="atom" value="application/atom+xml"/><entry key="html" value="text/html"/><entry key="json" value="application/json"/></map></property><property name="viewResolvers"><list><bean class="org.springframework.web.servlet.view.BeanNameViewResolver"/><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/WEB-INF/"/><property name="suffix" value=".jsp"/></bean></list></property><property name="defaultViews"><list><bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"/></list></property></bean> -->
</beans>

4. web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://java.sun.com/xml/ns/javaee"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"id="WebApp_ID" version="2.5"><display-name>cbar</display-name><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-config.xml</param-value></context-param><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><filter><filter-name>Encoding</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>utf8</param-value></init-param></filter><filter-mapping><filter-name>Encoding</filter-name><url-pattern>/*</url-pattern></filter-mapping><servlet><servlet-name>spring</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-servlet.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>spring</servlet-name><url-pattern>*.do</url-pattern></servlet-mapping><error-page><exception-type>java.lang.Exception</exception-type><location>/error.jsp</location></error-page><welcome-file-list><welcome-file>report/report.jsp</welcome-file></welcome-file-list>
</web-app>

5. PageUtil类

package com.asia.util.mybatispage;import java.util.List;import com.fasterxml.jackson.annotation.JsonIgnore;public class PageUtil {private int rows;private int total;private int page;private String orderStr;private String sort;private String order;private Object queryObj;private List<?> data;@JsonIgnorepublic String getOrderStr() {orderStr = "";if (!org.springframework.util.StringUtils.isEmpty(order)) {String[] orders = order.split(",");String[] sorts = sort.split(",");for (int i = 0; i < sorts.length; i++) {orderStr += sorts[i] + " " + orders[i] + ", ";}orderStr = orderStr.endsWith(", ") ? orderStr.substring(0, orderStr.length() - 2) : orderStr;}return orderStr;}@JsonIgnorepublic int getPageSize() {return rows;}public List<?> getRows(){return data;}public void setRows(int rows) {this.rows = rows;}public int getTotal() {return total;}public void setTotal(int total) {this.total = total;}@JsonIgnorepublic int getPage() {return page;}public void setPage(int page) {this.page = page;}@JsonIgnorepublic String getSort() {return sort;}public void setSort(String sort) {this.sort = sort;}@JsonIgnorepublic String getOrder() {return order;}public void setOrder(String order) {this.order = order;}@JsonIgnorepublic Object getQueryObj() {return queryObj;}public void setQueryObj(Object queryObj) {this.queryObj = queryObj;}public void setOrderStr(String orderStr) {this.orderStr = orderStr;}public void setData(List<?> data) {this.data = data;}@Overridepublic String toString() {return "PageUtil [rows=" + rows + ", total=" + total + ", page=" + page+ ", orderStr=" + orderStr + ", sort=" + sort + ", order="+ order + ", queryObj=" + queryObj + ", data=" + data + "]";}}

6. Mybatis过滤器PageInterceptor类

package com.asia.util.mybatispage;import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import java.util.Properties;import org.apache.ibatis.executor.parameter.ParameterHandler;
import org.apache.ibatis.executor.statement.RoutingStatementHandler;
import org.apache.ibatis.executor.statement.StatementHandler;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.ParameterMapping;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.Intercepts;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.plugin.Plugin;
import org.apache.ibatis.plugin.Signature;
import org.apache.ibatis.scripting.defaults.DefaultParameterHandler;import com.asia.util.ReflectUtil;/*** 分页拦截器* * @author SCY** @CreateTime 2016年2月19日下午2:21:26** @Vsersion 1.0*/
@Intercepts({@Signature(method = "prepare", type = StatementHandler.class, args = {Connection.class})} )
public class PageInterceptor implements Interceptor {private String databaseType;@Overridepublic Object intercept(Invocation invocation) throws Throwable {final RoutingStatementHandler handler = (RoutingStatementHandler) invocation.getTarget();final StatementHandler delegate = (StatementHandler) ReflectUtil.getFieldValue(handler, "delegate");final BoundSql boundSql = delegate.getBoundSql();final Object obj = boundSql.getParameterObject();//如果参数类型为自定义的PageUtil类型则执行分页处理if (obj instanceof PageUtil) {final PageUtil page = (PageUtil) obj;MappedStatement mappedStatement = (MappedStatement) ReflectUtil.getFieldValue(delegate, "mappedStatement");Connection connection = (Connection) invocation.getArgs()[0];final String sql = boundSql.getSql();//获取原sqlfinal String pageSql = this.getPageSql(page, sql);//转换为分页SQLSystem.out.println(pageSql);//获取总记录数int rowCount = getRowCount(page, mappedStatement, connection);System.out.println("rowCount:"+rowCount);page.setTotal(rowCount);ReflectUtil.setFieldValue(boundSql, "sql", pageSql);}return invocation.proceed();}private String getCountSql(String sql) {return "select count(*) from (" + sql+") a";}/*** 生成分页数据sql* @param page* @param sql* @return*/private String getPageSql(PageUtil page, String sql) {final StringBuffer sqlBuffer = new StringBuffer(sql);if ("mysql".equalsIgnoreCase(databaseType)) {return getMysqlPageSql(page, sqlBuffer);} else if ("oracle".equalsIgnoreCase(databaseType)) {return getOraclePageSql(page, sqlBuffer);}return sqlBuffer.toString();}/*** 生产mysql数据分页sql* @param page* @param sqlBuffer* @return*/private String getMysqlPageSql(PageUtil page, StringBuffer sqlBuffer) {int offset = (page.getPage() - 1) * page.getPageSize() ;sqlBuffer.append(" limit ").append(offset).append(",").append(page.getPageSize());return sqlBuffer.toString();}/*** 获取Oracle数据库的分页查询语句*/private String getOraclePageSql(PageUtil page, StringBuffer sqlBuffer) {System.out.println(page);int offset = (page.getPage() - 1) * page.getPageSize() + 1;System.out.println(offset);sqlBuffer.insert(0, "select u.*, rownum r from (").append(") u where rownum < ").append(offset + page.getPageSize());sqlBuffer.insert(0, "select * from (").append(") where r >= ").append(offset);return sqlBuffer.toString();}/*** 获取总数据量* @param page* @param mappedStatement* @param connection* @return* @throws SQLException*/private int getRowCount(PageUtil page, MappedStatement mappedStatement, Connection connection) throws SQLException {int totalRecord = 0;BoundSql boundSql = mappedStatement.getBoundSql(page);String sql = boundSql.getSql();String countSql = this.getCountSql(sql);List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();BoundSql countBoundSql = new BoundSql(mappedStatement.getConfiguration(), countSql, parameterMappings, page);ParameterHandler parameterHandler = new DefaultParameterHandler(mappedStatement, page, countBoundSql);PreparedStatement pstmt = null;ResultSet rs = null;try {pstmt = connection.prepareStatement(countSql);parameterHandler.setParameters(pstmt);rs = pstmt.executeQuery();if (rs.next()) {totalRecord = rs.getInt(1);}}  finally {try {if (rs != null)rs.close();} finally{if (pstmt != null)pstmt.close();}}return totalRecord;}@Overridepublic Object plugin(Object target) {return Plugin.wrap(target, this);}@Overridepublic void setProperties(Properties properties) {this.databaseType = properties.getProperty("databaseType");}
}

以下相关内容为样例程序代码，已简单的用户信息管理为例

7. UserInfo类

package com.asia.demo.bean;public class UserInfo {private int id;private String uname;private String birthday;private String sex;private String address;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getUname() {return uname;}public void setUname(String uname) {this.uname = uname;}public String getBirthday() {return birthday;}public void setBirthday(String birthday) {this.birthday = birthday;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public String getAddress() {return address;}public void setAddress(String address) {this.address = address;}@Overridepublic String toString() {return "UserInfo [id=" + id + ", uname=" + uname + ", birthday="+ birthday + ", sex=" + sex + ", address=" + address + "]";}}

8. UserController类

package com.asia.demo.controller;import java.util.HashMap;
import java.util.List;
import java.util.Map;import javax.annotation.Resource;import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;import com.asia.demo.bean.UserInfo;
import com.asia.demo.service.IUserService;
import com.asia.util.mybatispage.PageUtil;@Controller
@RequestMapping("/user")
public class UserController {@Resourceprivate IUserService userService;@RequestMapping(value="/searchUser")public @ResponseBody PageUtil search(UserInfo uesrInfo, PageUtil pu) {pu.setQueryObj(uesrInfo);//设置查询条件List<UserInfo> data= userService.searchUser(pu);pu.setData(data);//设置反馈结果return pu;}public IUserService getUserService() {return userService;}public void setUserService(IUserService userService) {this.userService = userService;}}

9. UserInfoMapper类

package com.asia.demo.mapper;import java.util.List;import org.springframework.stereotype.Repository;import com.asia.demo.bean.UserInfo;
import com.asia.util.mybatispage.PageUtil;@Repository("userInfoMapper")
public interface UserInfoMapper {public List<UserInfo> queryUser();public List<UserInfo> searchUser(PageUtil spu);
}

10. Mybatis配置文件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="com.asia.demo.mapper.UserInfoMapper"><!-- 查询所有记录 --><select id="queryUser" resultType="com.asia.demo.bean.UserInfo">select id, uname, birthday, sex, address from userinfo</select><select id="searchUser" resultType="com.asia.demo.bean.UserInfo" parameterType="com.asia.util.mybatispage.PageUtil">select id, uname, birthday, sex, address from userinfo <where><if test="queryObj.uname != null">AND uname = #{queryObj.uname}</if><if test="queryObj.sex != null ">AND sex = #{queryObj.sex}</if></where></select>
</mapper>

11. UserServiceImpl类，接口代码省略

package com.asia.demo.service.impl;import java.util.List;import javax.annotation.Resource;import org.springframework.stereotype.Service;import com.asia.demo.bean.UserInfo;
import com.asia.demo.mapper.UserInfoMapper;
import com.asia.demo.service.IUserService;
import com.asia.util.mybatispage.PageUtil;@Service("userServiceImpl")
public class UserServiceImpl implements IUserService {@Resourceprivate UserInfoMapper userInfoMapper;@Overridepublic List<UserInfo> queryUser() {return userInfoMapper.queryUser();}@Overridepublic List<UserInfo> searchUser(PageUtil spu) {return userInfoMapper.searchUser(spu);}public UserInfoMapper getUserInfoMapper() {return userInfoMapper;}public void setUserInfoMapper(UserInfoMapper userInfoMapper) {this.userInfoMapper = userInfoMapper;}}

12. UserList.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head><title>查询</title><meta http-equiv="pragma" content="no-cache" /><meta http-equiv="cache-control" content="no-cache" /><meta http-equiv="expires" content="0" /><link type="text/css" href="<%=path %>/common/jquery/easyui/css/default/easyui.css"  rel="stylesheet" charset='UTF-8'><link type="text/css" href="<%=path %>/common/jquery/easyui/css/icon.css" rel="stylesheet" charset='UTF-8'><script type="text/javascript">var basePath="<%=path %>";</script><script language="javascript" src="<%=path %>/common/jquery/core/jquery-1.11.1.js"></script><script language="javascript" src="<%=path %>/common/jquery/easyui/js/jquery.easyui.min.js"></script><script language="javascript" src="<%=path %>/demo/js/UserList.js"></script>
</head>
<body class="body">
<table width="98%"><tr><td><table id="userInfo" title=""></table>  </td></tr>
</table></body>
</html>

13. UserList.js

/*** 设置列* * @return*/
function getColumns() {return [[{field:'id', title:"编号", checkbox:true},{field:'user', title:"用户名", halign:'center', align:'center',sortable:true, width:278},{field:'birthday', title:"出生日期", halign:'center', align:'center', sortable:true, width:150},{field:'sex', title:"性别", halign:'center', align:'center',sortable:true, width:80},/* {field:'address', title:"状态", halign:'center', align:'center',sortable:true, width:80,formatter: function(value,row,index){return taskState.get(value);}},*/{field:'address', title:"地址", halign:'center', align:'center',sortable:true, width:180}]];
}/*** 初始化页面*/
jQuery(function() {var gridParam = {rownumbers:true,loadMsg : "数据加载中",pagination : true,multiSort : true,pageSize :  10,pageList : [  10, 20, 30, 50, 100 ],striped : true,columns : getColumns(),//queryParams : queryParams,url:basePath+"/user/searchUser.do",collapsible : true,singleSelect : true,idField : "id" // 支持跨页选择};$('#userInfo').datagrid(gridParam);$('#userInfo').datagrid("getPager").pagination( {pageSize : 10,displayMsg : '当前数据范围 {from} 到 {to} ，共 {total} 条记录',beforePageText : '当前',afterPageText : '  ,共 {pages}页'});
});

补充ReflectUtil

package com.asia.util;import java.lang.reflect.Field;/*** 反射工具类* @author SCY** @createDate 2013-12-19上午09:29:45* * @version 1.0*/
public class ReflectUtil {private ReflectUtil(){}/*** 反射获取对象String类型属性值* @param obj* @param paramName* @return String 对象属性值* @throws Exception*/public static String getObjValue(Object obj, String paramName)throws Exception{String getMethodName = "get"+ Character.toUpperCase(paramName.charAt(0))+ paramName.substring(1);return (String) obj.getClass().getMethod(getMethodName).invoke(obj);}/*** 为对象某String类型属性设置指定值* @param obj 待赋值对象* @param paramName  属性名称* @param paramValue 属性值* @throws Exception*/public static void setObjValue(Object obj, String paramName,String paramValue) throws Exception {String getMethodName = "set"+ Character.toUpperCase(paramName.charAt(0))+ paramName.substring(1);obj.getClass().getMethod(getMethodName, String.class).invoke(obj,paramValue);}/*** 利用反射获取指定对象的指定属性* @throws IllegalAccessException * @throws IllegalArgumentException */public static Object getFieldValue(Object obj, String fieldName) throws IllegalArgumentException, IllegalAccessException {Object result = null;final Field field = ReflectUtil.getField(obj, fieldName);if (field != null) {field.setAccessible(true);result = field.get(obj);}return result;}/*** 利用反射获取指定对象里面的指定属性*/private static Field getField(Object obj, String fieldName) {Field field = null;for (Class<?> clazz = obj.getClass(); clazz != Object.class; clazz = clazz.getSuperclass()) {try {field = clazz.getDeclaredField(fieldName);break;} catch (NoSuchFieldException e) {// 这里不用做处理，子类没有该字段可能对应的父类有，都没有就返回null。}}return field;}/*** 利用反射设置指定对象的指定属性为指定的值* @throws IllegalAccessException * @throws IllegalArgumentException */public static void setFieldValue(Object obj, String fieldName, String fieldValue) throws IllegalArgumentException, IllegalAccessException {final Field field = ReflectUtil.getField(obj, fieldName);if (field != null) {field.setAccessible(true);field.set(obj, fieldValue);}}
}

demo下载地址

http://download.csdn.net/download/suijiarui/9515485

欢迎大家拍砖

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