ssm-crud项目——分页查询
Posted chengshun
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分页查询（ajax异步查询）：
工程目录结构：
基于maven构建工程：
一、准配配置文件
1.创建pom.xml
<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.atguigu</groupId> <artifactId>ssm-crud</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <!-- 引入项目依赖的jar包 --> <!-- springmvc、spring --> <dependencies> <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- spring-jdbc 事務控制--> <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- spring-test 单元测试模块 --> <!-- https://mvnrepository.com/artifact/org.springframework/spring-test --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.3.7.RELEASE</version> <scope>test</scope> </dependency> <!-- spring 面向切面編程 --> <!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!-- mybatis --> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.2</version> </dependency> <!-- mybatis 整合spring的适配包 --> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> <!-- 数据库连接池、驱动 --> <!-- https://mvnrepository.com/artifact/c3p0/c3p0 --> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.41</version> </dependency> <!-- jstl,servlet-api,junit --> <!-- https://mvnrepository.com/artifact/jstl/jstl --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- https://mvnrepository.com/artifact/javax.servlet/servlet-api --> <!-- <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> --> <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.0.1</version> <scope>provided</scope> </dependency> <!-- https://mvnrepository.com/artifact/junit/junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!-- 引入pageHelper插件 --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>5.0.0</version> </dependency> <!-- 返回json字符串的支持 --> <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.8</version> </dependency> <!-- MBG(mybatis generator) --> <!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core --> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.5</version> </dependency> <!-- <packaging>war</packaging>报错时，添加下面依赖 --> <dependency> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId> <version>2.5</version> </dependency> </dependencies> </project>
2.创建web.xml
<?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"> <!-- 1、启动spring容器 --> <!-- needed for ContextLoaderListener --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- Bootstraps the root web application context before servlet initialization --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 2、springmvc的前端控制器 拦截所有请求 --> <!-- The front controller of this Spring Web application, responsible for handling all application requests --> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <!-- Map all requests to the DispatcherServlet for handling --> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 字符编码 过滤器 一定要放在所有过滤器之前的--> <filter> <filter-name>CharacterEncodingFilter</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>forceRequestEncoding</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>forceResponseEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 4、使用Rest风格的URI 将页面普通的post请求转为指定的delete或者put请求--> <filter> <filter-name>HiddenHttpMethodFilter</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter-mapping> <filter-name>HiddenHttpMethodFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <display-name>ssm-crud</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> </web-app>
3.创建（springmvc）dispatcherServlet-servlet.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" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.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-4.3.xsd"> <!-- springmvc配置文件，包含网站跳转逻辑的控制，配置 --> <context:component-scan base-package="com.atguigu" use-default-filters="false"> <!-- 只扫描控制器 --> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- 配置视图解析器，方便页面返回 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/views/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- 两个标准配置 --> <!-- 将springMVC不能处理的请求交给Tomcat --> <mvc:default-servlet-handler/> <!-- 能支持springmvc更高级的一些功能 ，如：JSR303校验，快捷的ajax.. 映射动态请求--> <mvc:annotation-driven/> </beans>
4.创建(mybatis全局配置文件) 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> <settings> <setting name="mapUnderscoreToCamelCase" value="true"/> </settings> <!-- 类型别名 配置--> <typeAliases> <package name="com.atguigu.crud.bean"/> </typeAliases> <!-- 注册pagehelper插件 --> <plugins> <plugin interceptor="com.github.pagehelper.PageInterceptor"> <!-- 分页参数合理化 --> <property name="reasonable" value="true"/> </plugin> </plugins> </configuration>
5.创建（spring）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:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.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-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd"> <!-- spring配置文件的核心点（数据源，与mybatis的整合，事务控制） --> <!--================ 扫描业务逻辑组件====================================--> <context:component-scan base-package="com.atguigu"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- spring配置文件，这里主要配置和业务逻辑有关的 --> <!-- =====================数据源================================ --> <!-- 引入配置的dbconfig.properties --> <context:property-placeholder location="classpath:dbconfig.properties"/> <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property> <property name="driverClass" value="${jdbc.driverClass}"></property> <property name="user" value="${jdbc.user}"></property> <property name="password" value="${jdbc.password}"></property> </bean> <!--===================== 配置和mybatis的整合 ========================--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 指定mybatis全局配置文件的位置 --> <property name="configLocation" value="classpath:mybatis-config.xml"></property> <property name="dataSource" ref="pooledDataSource"></property> <!-- 指定mybatis，mapper文件的位置 --> <property name="mapperLocations" value="classpath:mapper/*.xml"></property> </bean> <!-- 配置扫描器，将mybatis接口的实现加入到ioc容器中 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!-- 扫描所有dao接口的实现，加入到ioc容器中 --> <property name="basePackage" value="com.atguigu.crud.dao"></property> </bean> <!-- 配置一个可以执行批量的sqlSession --> <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"></constructor-arg> <constructor-arg name="executorType" value="BATCH"></constructor-arg> </bean> <!--======================= 事务控制的配置========================== --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <!-- 控制住数据源 --> <property name="dataSource" ref="pooledDataSource"></property> </bean> <!-- 开启基于注解的事务，使用xml形式配置事务（一般比较重要的使用配置式） --> <aop:config> <!-- 切入点表达式，哪些要切入 --> <aop:pointcut expression="execution(* com.atguigu.crud.service..*(..))" id="txPoint" /> <!-- 配置事务增强 --> <aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/> </aop:config> <!-- 配置事务增强，事务如何切入 --> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <!-- 所有方法都是事务方法 --> <tx:method name="*"/> <!-- 以get开始的所有方法 --> <tx:method name="get*" read-only="true"/> </tx:attributes> </tx:advice> </beans>
6.创建dbconfig.properties
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/ssm_crud
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=123
二、在src/main/java下创建项目包（controller、service、dao、bean、test、utils）
三、通过mybatis generator逆向工程通过数据库中的表生成对应的bean、dao、mapper
四、编写：
package com.atguigu.crud.controller; 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.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import com.atguigu.crud.bean.Employee; import com.atguigu.crud.bean.Msg; import com.atguigu.crud.service.EmployeeService; import com.github.pagehelper.PageHelper; import com.github.pagehelper.PageInfo; /** * 处理员工CRUD请求 * @author Administrator * */ @Controller public class EmployeeController { @Autowired EmployeeService employeeService; /** * @ResponseBody要正常工作,需导入jackson包 * @ResponseBody可以自动将返回的对象转换为json字符串 */ @RequestMapping("/emps") @ResponseBody public Msg getEmpsWithJson(@RequestParam(value="pn",defaultValue="1") Integer pn){ PageHelper.startPage(pn, 5); //startPage后面紧跟的这个查询就是一个分页查询 List<Employee> emps = employeeService.getAll(); //使用pageInfo包装查询后的结果，只需要将pageInfo交给页面就行了。 //pageInfo里面封装了分页的详细信息，包括有我们查询出来的数据,传入连续显示的页数5 PageInfo page = new PageInfo(emps,5); return Msg.success().add("pageInfo", page); } /** * 查询员工数据（分页查询） * @return * * Integer pn表示传入的所要查询的哪一页,若没有指定查哪一页，则为默认值 1 */ //@RequestMapping("/emps") public String getEmps(@RequestParam(value="pn",defaultValue="1") Integer pn, Model model){ //这不是一个分页查询； //List<Employee> emps = employeeService.getAll(); //return "list"; //使用PageHelper分页插件 //在查询之前只需要调用，传入页码，以及每页的大小 PageHelper.startPage(pn, 5); //startPage后面紧跟的这个查询就是一个分页查询 List<Employee> emps = employeeService.getAll(); //使用pageInfo包装查询后的结果，只需要将pageInfo交给页面就行了。 //pageInfo里面封装了分页的详细信息，包括有我们查询出来的数据,传入连续显示的页数5 PageInfo page = new PageInfo(emps,5); //在Model里面传的数据都会带给页面 model.addAttribute("pageInfo", page); return "list"; } }
package com.atguigu.crud.service; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.atguigu.crud.bean.Employee; import com.atguigu.crud.dao.EmployeeMapper; @Service public class EmployeeService { @Autowired EmployeeMapper employeeMapper; /** * 查询所有员工 * @return */ public List<Employee> getAll() { return employeeMapper.selectByExampleWithDept(null); } }
五、测试（模拟前端测试数据）
package com.atguigu.crud.test; import java.util.UUID; import org.apache.ibatis.session.SqlSession; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import com.atguigu.crud.bean.Department; import com.atguigu.crud.bean.Employee; import com.atguigu.crud.dao.DepartmentMapper; import com.atguigu.crud.dao.EmployeeMapper; /** * 测试dao层工作 * @author Administrator *推荐Spring的项目就可以使用spring的单元测试，可以自动注入我们需要的组件 * 1、导入springTest模块 * 2、@ContextConfiguration指定spring配置文件的位置，帮我们自动创建出ioc容器 * 3、@RunWith这个是junit里面的注解，我们在运行单元测试的时候，指定我们是用哪个来运行， * 我们使用的是spring的单元测试模块，里面的值为SpringJUnit4ClassRunner.class（所有的test运行的时候是它来运行的） * 4、直接autowired要使用的组件即可 */ @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations={"classpath:applicationContext.xml"}) public class MapperTest { //直接从ioc容器中取出dao接口实现 @Autowired DepartmentMapper departmentMapper; @Autowired EmployeeMapper employeeMapper; @Autowired SqlSession sqlsession; /** * 测试DepartmentMapper */ @Test public void testCRUD(){ /*//原生从spring容器中获取实例 //1、创建SpringIOC容器 ApplicationContext ioc = new ClassPathXmlApplicationContext("applicationContext.xml"); //2、从容器中获取mapper DepartmentMapper bean = ioc.getBean(DepartmentMapper.class); */ System.out.println(departmentMapper); //1、插入几个部门 //departmentMapper.insertSelective(new Department(null, "开发部")); //departmentMapper.insertSelective(new Department(null, "测试部")); //2.生成员工数据，测试员工插入 //employeeMapper.insertSelective(new Employee(null, "Jerry", "M", "[email protected]", 1)); //3.批量插入多个员工；批量，使用可以执行批量操作的sqlsession EmployeeMapper mapper = sqlsession.getMapper(EmployeeMapper.class); for(int i = 0;i<1000;i++){ String uid = UUID.randomUUID().toString().substring(0, 5) + i; mapper.insertSelective(new Employee(null, uid, "M", uid+"@atguigu.com", 1)); } System.out.println("批量完成"); } }
package com.atguigu.crud.test; import java.util.List; import org.junit.Before; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.mock.web.MockHttpServletRequest; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import org.springframework.test.context.web.WebAppConfiguration; import org.springframework.test.web.servlet.MockMvc; import org.springframework.test.web.servlet.MvcResult; import org.springframework.test.web.servlet.request.MockMvcRequestBuilders; import org.springframework.test.web.servlet.setup.MockMvcBuilders; import org.springframework.web.context.WebApplicationContext; import com.atguigu.crud.bean.Employee; import com.github.pagehelper.PageInfo; /** * 使用spring测试模块提供的测试请求功能，测试crud请求的正确性 * spring4测试的时候，需要servlet3.0的支持 * @author Administrator * */ @RunWith(SpringJUnit4ClassRunner.class) @WebAppConfiguration @ContextConfiguration(locations={"classpath:applicationContext.xml","file:src/main/webapp/WEB-INF/dispatcherServlet-servlet.xml"}) public class MvcTest { //传入Springmvc的ioc @Autowired WebApplicationContext context; //虚拟mvc请求，获取到处理结果。 MockMvc mockMvc; @Before public void initMockMvc(){ mockMvc = MockMvcBuilders.webAppContextSetup(context).build(); } //编写测试分页的方法 @Test public void testPage() throws Exception{ //模拟请求，拿到返回值 MvcResult result = mockMvc.perform(MockMvcRequestBuilders.get("/emps").param("pn", "5")). andReturn(); //请求成功以后，请求域中会有pageInfo，可以取出pageInfo进行验证 MockHttpServletRequest request = result.getRequest(); PageInfo pi = (PageInfo) request.getAttribute("pageInfo"); System.out.println("当前页码"+pi.getPageNum()); System.out.println("总页码"+pi.getPages()); System.out.println("总记录数"+pi.getTotal()); System.out.println("在页面中需要连续显示的页码："); int[] nums = pi.getNavigatepageNums(); for (int i : nums) { System.out.println(" "+i); } //获取员工数据 List<Employee> list = pi.getList(); for (Employee employee : list) { System.out.println("ID:"+employee.getdId()+"===>Name： "+employee.getEmpName()); } } }
六、编写前端页面
<%@ 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>员工页面</title> <% pageContext.setAttribute("APP_PATH", request.getContextPath()); %> <script type="text/javascript" src="${APP_PATH }/static/js/jquery-1.12.4.min.js"></script> <link href="${APP_PATH }/static/bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="stylesheet"> <script src="${APP_PATH }/static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script> </head> <body> <!-- 搭建显示页面 --> <div class="container"> <!-- 标题 --> <div class="row"> <div class="col-md-12"> <h1>SSM-CRUD</h1> </div> </div> <!-- 按钮 --> <div class="row"> <div class="col-md-4 col-md-offset-8"> <button class="btn btn-primary">新增</button> <button class="btn btn-danger">删除</button> </div> </div> <!-- 显示表格数据 --> <div class="row"> <div class="col-md-12"> <table class="table table-hover" id="emps_table"> <thead> <tr> <th>#</th> <th>empName</th> <th>gender</th> <th>email</th> <th>deptName</th> <th>操作</th> </tr> </thead> <tbody> </tbody> </table> </div> </div> <!-- 显示分页信息 --> <div class="row"> <!-- 分页文字信息 --> <div class="col-md-6" id = "page_info_area"> </div> <!-- 分页条信息 --> <div class="col-md-6" id = "page_nav_area"> </div> </div> </div> <script type="text/javascript"> //1、页面加载完成后，直接发送一个ajax请求，要到分页 数据 $(function(){ //页面加载完后，首先查询第一页 to_page(1); }); //查询分页的数据（抽取ajax查询方法） function to_page(pn){ $.ajax({ url:"${APP_PATH}/emps", data:"pn="+pn, type:"GET", success:function(result){ //console.log(result); //1.解析并显示员工数据 build_emps_table(result); //2.解析显示分页信息 build_page_info(result); //3.解析显示（构建）分页条 build_page_nav(result); } }); } //解析显示(构建)员工表格 function build_emps_table(result){ /*************** 查询数据之前，必须清空table表 */ $("#emps_table tbody").empty(); //取出员工数据 var emps = result.extend.pageInfo.list; //遍历员工数据 $.each(emps,function(index,item){ //alert(item.empName); //取出empId(构建单元格) var empIdTd = $("<td></td>").append(item.empId); var empNameTd = $("<td></td>").append(item.empName); var genderTd = $("<td></td>").append(item.gender==‘M‘?"男":"女"); var emailTd = $("<td></td>").append(item.email); var deptNameTd = $("<td></td>").append(item.department.deptName); /* <button class="btn btn-primary btn-xs"> <span class="glyphicon glyphicon-pencil" aria-hidden="true"></span> 编辑 </button> */ var editBtn = $("<button></button>").addClass("btn btn-primary btn-xs") .append($("<span></span>").addClass("glyphicon glyphicon-pencil")) .append("编辑"); var delBtn = $("<button></button>").addClass("btn btn-danger btn-xs") .append($("<span></span>").addClass("glyphicon glyphicon-trash")) .append("删除"); var btnTd = $("<td></td>").append(editBtn).append(" ").append(delBtn); $("<tr></tr>").append(empIdTd) .append(empNameTd) .append(genderTd) .append(emailTd) .append(deptNameTd) .append(btnTd) .appendTo("#emps_table tbody"); }); } //解析显示分页信息 function build_page_info(result){ /*************** 查询数据之前，必须清空分页信息 */ $("#page_info_area").empty(); $("#page_info_area").append("当前"+ result.extend.pageInfo.pageNum+"页，总"+ result.extend.pageInfo.pages+"页，总"+ result.extend.pageInfo.total+"条记录。") } //解析显示（构建）分页条，点击分页条要能去下一页。。。 function build_page_nav(result){ /*************** 查询数据之前，必须清空分页条信息 */ $("#page_nav_area").empty(); //page_info_area var ul= $("<ul></ul>").addClass("pagination"); //构建元素 var firstPageLi = $("<li></li>").append($("<a></a>").append("首页").attr("href","#")); var prePageLi = $("<li></li>").append($("<a></a>").append("«")); if(result.extend.pageInfo.hasPreviousPage==false){ firstPageLi.addClass("disabled"); prePageLi.addClass("disabled"); }else{ //为元素添加点击翻页事件 firstPageLi.click(function(){ to_page(1); }); prePageLi.click(function(){ to_page(result.extend.pageInfo.pageNum-1); }); } var nextPageLi = $("<li></li>").append($("<a></a>").append("»")); var lastPageLi = $("<li></li>").append($("<a></a>").append("末页").attr("href","#")); if(result.extend.pageInfo.hasNextPage==false){ nextPageLi.addClass("disabled"); lastPageLi.addClass("disabled"); }else{ //为元素添加点击翻页事件 nextPageLi.click(function(){ to_page(result.extend.pageInfo.pageNum + 1); }); lastPageLi.click(function(){ to_page(result.extend.pageInfo.pages); }); } //添加首页和前一页的提示 ul.append(firstPageLi).append(prePageLi); //遍历页码号 1.2.3. //将页码号添加到ul中 $.each(result.extend.pageInfo.navigatepageNums,function(index,item){ var numLi= $("<li></li>").append($("<a></a>").append(item)); if(result.extend.pageInfo.pageNum == item){ numLi.addClass("active"); } //添加点击事件，通过ajax查询选择的页面 numLi.click(function(){ to_page(item); }); ul.append(numLi); }); //添加下一页和末页的提示 ul.append(nextPageLi).append(lastPageLi); //将ul添加到nav var navEle = $("<nav></nav>").append(ul); navEle.appendTo("#page_nav_area"); } </script> </body> </html>
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