maven+ssm+PageHelper完成分页
文章目录
- 1 引入pom依赖:
- 2 建表（mysql）：
- 3 根据数据库创建实体类：
- 4 UserDao接口：
- 5 UserDao.xml:也就相当于UserDao的实现类
- 6 创建Service接口：
- 7 实现Service接口：
- 8 Controller
- 9 jdbc.properties
- 10 spring-mybatis.xml:
- 10 springmvc.xml
- 11 在mybatis-config.xml配置分页插件（必须配置分页）
- 12 配置 web.xml:
- 13 文件结构：
- 14 JSP页面
1 引入pom依赖:
<?xml version="1.0" encoding="UTF-8"?>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.redocloud</groupId>
<artifactId>maven-ssm2</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>maven-ssm2 Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<!--统一使用该spring版本-->
<srping.version>4.0.2.RELEASE</srping.version>
<!--统一使用该mybatis版本-->
<mybatis.version>3.2.8</mybatis.version>
<!--log4j相应版本配置-->
<slf4j.version>1.7.12</slf4j.version>
<log4j.version>1.2.17</log4j.version>
<!--指定项目使用编码-->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!--设置jdk版本-->
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!--支持servlet-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- java ee包 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<!-- spring框架包 start -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${srping.version}</version>
</dependency>
<!-- spring框架包 end -->
<!-- mybatis框架包 start -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- mybatis框架包 end -->
<!-- 数据库驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.35</version>
</dependency>
<!-- 数据库连接池 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<!-- jstl标签类 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${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 -->
<!-- Json -->
<!-- 格式化对象，方便输出日志 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.68</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- 上传组件包 start -->
<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>1.10</version>
</dependency>
<!-- 上传组件包 end -->
<!--引入pageHelper分页插件-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.11</version>
</dependency>
</dependencies>
<build>
<finalName>maven-ssm2</finalName>
<resources>
<!--防止出现资源找不到的情况-->
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties
**/ *.xml</include>
<include>**/*.tld
false
src/main/java
**/ *.xml</include>
</includes>
</resource>
</resources>
</build>
</project>
2 建表（mysql）：
DROP TABLE IF EXISTS `tb_user`;
CREATE TABLE `tb_user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`user_name` varchar(40) NOT NULL,
`password` varchar(40) NOT NULL,
`age` int(4) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=13 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of tb_user
-- ----------------------------
INSERT INTO `tb_user` VALUES ('1', '1', '1', '1');
INSERT INTO `tb_user` VALUES ('2', '2', '2', '2');
INSERT INTO `tb_user` VALUES ('3', '张三', '3232322', '22');
INSERT INTO `tb_user` VALUES ('4', '李四', '3232322', '22');
INSERT INTO `tb_user` VALUES ('5', '系统管理', '111', '23');
INSERT INTO `tb_user` VALUES ('6', '系统管理', 'hh', '23');
INSERT INTO `tb_user` VALUES ('7', '5161', '5162', '51');
INSERT INTO `tb_user` VALUES ('8', '333', '22', '11');
INSERT INTO `tb_user` VALUES ('9', 'ctt', '222', '18');
INSERT INTO `tb_user` VALUES ('10', 'zz', '8888', '24');
INSERT INTO `tb_user` VALUES ('11', 'ww', '111', '28');
INSERT INTO `tb_user` VALUES ('12', 'ss', '333', '27');
3 根据数据库创建实体类：
public class User {
private Integer id;
private String userName;
private String password;
private Integer age;
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 getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", userName='" + userName + '\'' +
", password='" + password + '\'' +
", age=" + age +
'}';
}
}
4 UserDao接口：
/**
- ClassName : UserDao
- package : com.redocloud.dao
- 功能描述：
- @Date : 2020/4/14 0014 17:27
- @Author : one world
*/
public interface UserDao {
int deleteByPrimaryKey(Integer id);
int insert(User record);
int insertSelective(User record);
User selectByPrimaryKey(Integer id);
int updateByPrimaryKeySelective(User record);
int updateByPrimaryKey(User record);
List<User> findUsers();
}
5 UserDao.xml:也就相当于UserDao的实现类
<?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" >
<!-- namespace的值就是dao接口的完整路径，就这个demo而言namespace 就是userDao.java的完整路径-->
<mapper namespace="com.redocloud.dao.UserDao">
<resultMap id="BaseResultMap" type="com.redocloud.entity.User">
<id column="id" property="id" jdbcType="INTEGER" />
<result column="user_name" property="userName" jdbcType="VARCHAR" />
<result column="password" property="password" jdbcType="VARCHAR" />
<result column="age" property="age" jdbcType="INTEGER" />
</resultMap>
<sql id="Base_Column_List">
id, user_name, password, age
</sql>
<select id="selectByPrimaryKey" resultMap="BaseResultMap"
parameterType="java.lang.Integer">
select
<include refid="Base_Column_List" />
from tb_user
where id = #{id,jdbcType=INTEGER}
</select>
<select id="findUsers" resultMap="BaseResultMap">
select * from tb_user
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
delete from
tb_user
where id = #{id,jdbcType=INTEGER}
</delete>
<insert id="insert" parameterType="com.redocloud.entity.User">
insert into tb_user (id,
user_name, password,
age)
values (#{id,jdbcType=INTEGER},
#{userName,jdbcType=VARCHAR},
#{password,jdbcType=VARCHAR},
#{age,jdbcType=INTEGER})
</insert>
<insert id="insertSelective" parameterType="com.redocloud.entity.User">
insert into tb_user
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="id != null">
id,
</if>
<if test="userName != null">
user_name,
</if>
<if test="password != null">
password,
</if>
<if test="age != null">
age,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="id != null">
#{id,jdbcType=INTEGER},
</if>
<if test="userName != null">
#{userName,jdbcType=VARCHAR},
</if>
<if test="password != null">
#{password,jdbcType=VARCHAR},
</if>
<if test="age != null">
#{age,jdbcType=INTEGER},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="com.redocloud.entity.User">
update tb_user
<set>
<if test="userName != null">
user_name = #{userName,jdbcType=VARCHAR},
</if>
<if test="password != null">
password = #{password,jdbcType=VARCHAR},
</if>
<if test="age != null">
age = #{age,jdbcType=INTEGER},
</if>
</set>
where id = #{id,jdbcType=INTEGER}
</update>
<update id="updateByPrimaryKey" parameterType="com.redocloud.entity.User">
update tb_user
set
user_name = #{userName,jdbcType=VARCHAR},
password =
#{password,jdbcType=VARCHAR},
age = #{age,jdbcType=INTEGER}
where id =
#{id,jdbcType=INTEGER}
</update>
</mapper>
6 创建Service接口：
/**
* ClassName : UserService
* package : com.redocloud.service
* 功能描述：
*
* @Date : 2020/4/14 0014 17:31
* @Author : one world
*/
public interface UserService {
//根据id查找
public User getUserById(Integer userid);
//添加一条数据
public int insert(User user);
//查找所有
public List<User> findUsers();
}
7 实现Service接口：
/**
* ClassName : UserServiceImpl
* package : com.redocloud.impl
* 功能描述：
*
* @Date : 2020/4/14 0014 17:33
* @Author : one world
*/
@Transactional
@Service("userService")
public class UserServiceImpl implements UserService {
/**
* 因为没有在spring的文件中显式的声明userService实现类，直接通过getBean得到 userService 会找不到
* 需要显式配置 @Service ("userService")，指定bean的名称
* 相当与8 Controller
/**
* ClassName : UserController
* package : com.redocloud.controller
* 功能描述：
*
* @Date : 2020/4/14 0014 17:36
* @Author : one world
*/
@Controller
public class UserController {
/**
* 使用@Autowired也可以，@Autowired默认按类型装配
* @Resource 默认按名称装配，当找不到与名称匹配的bean才会按类型装配。
*/
@Resource
private UserService userService;
private static final Logger logger=org.apache.log4j.Logger.getLogger(User.class);
/**
* 测试查询
*
* @param id
* @param model
* @return
*/
@RequestMapping("/showUser")
public String testtoshowUser(@RequestParam(value = "id") Integer id, Model model) {
logger.info("通过id查找User");
User user = userService.getUserById(id);
model.addAttribute("user", user);
return "showUser";
}
/**Get请求添加用户**/
@GetMapping("/addUser")
public String toAddUser(){
return "addUser";
}
/**
* 测试添加数据
*
* @param
* @param
* @return
*/
@RequestMapping(value = "/insertUser",method = RequestMethod.POST)
public String testinsertUser(@RequestParam String name,@RequestParam String password,@RequestParam Integer age,Model model) {
logger.info("用户注册");
User user = new User();
user.setUserName(name);
user.setPassword(password);
user.setAge(age);
int count = userService.insert(user);
System.out.println("插入" + count + "条数据成功");
model.addAttribute("userName",name);
model.addAttribute("password",password);
model.addAttribute("age",age);
return "showUser";
}
/**查看所有用户**/
@RequestMapping(value = "/findUsers")
public String findUsers(@RequestParam Integer pageNo,Model model){
logger.info("查看所有用户");
//获取指定pageNo页数据，pageSize条数据为一页
PageHelper.startPage(pageNo,10);
List<User> list = userService.findUsers();
//使用PageInfo包装数据
PageInfo<User> pageInfo = new PageInfo<User>(list);
model.addAttribute("pageInfo",pageInfo);
return "list";
}
}
9 jdbc.properties
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/maven-ssm2?useUnicode=true&characterEncoding=UTF-8
username=root
password=322728
initialSize=0
maxActive=20
maxIdle=20
minIdle=1
maxWait=60000
10 spring-mybatis.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/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
">
<!-- 自动扫描 -->
<context:component-scan base-package="com.redocloud.entity" >
<!-- 不扫描@Controller注解的类-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 引入配置文件 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties" />
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
<!-- 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:com/redocloud/mapping/*.xml"></property>
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
</bean>
<!-- DAO接口所在包名，Spring会自动查找其下的类 动态代理实现 不用写dao的实现类-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.redocloud.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
<!--service-->
<bean id= "userService" class = "com.redocloud.impl.UserServiceImpl"/>
<!-- (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:annotation-driven transaction-manager="transactionManager"/>
</beans>
10 springmvc.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/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<!-- 自动扫描该包 @controller注解的类-->
<context:component-scan base-package="com.redocloud.controller"/>
<!-- 静态资源处理 将springmvc不能处理的请求交给tomcat -->
<mvc:default-servlet-handler/>
<!--自动注册 RequestMappingHandlerMapping、RequestMappingHandlerAdapter 等bean -->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 定义跳转的文件的前后缀 ，视图模式配置-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/pages/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
11 在mybatis-config.xml配置分页插件（必须配置分页）
<?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>
<!-- 配置分页插件 -->
<plugins>
<plugin interceptor="com.github.pagehelper.PageInterceptor">
<!-- 设置数据库类型 Oracle,Mysql,MariaDB,SQLite,Hsqldb,PostgreSQL六种数据库-->
<property name="helperDialect" value="mysql"/>
</plugin>
</plugins>
</configuration>
12 配置 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_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>maven-web-demo02</display-name>
<!-- 编码过滤器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<async-supported>true</async-supported>
<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>
<!-- Spring监听器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mybatis.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--Spring MVC 配置servlet -->
<servlet>
<servlet-name>springDispatcherServlet</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>springDispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
13 文件结构：
14 JSP页面
addUser.jsp:
<%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2020/4/15 0015
Time: 0:04
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
<!--使用..-->
<script type="text/javascript" src="../js/jquery-3.4.1.min.js"></script>
<script type="text/javascript">
function register() {
var name = $("#name").val();
var password = $("#password").val();
var age = $("#age").val();
$.ajax({
//此处这个写法是访问本文件路径下的insertUser(也就是访问了错误路径）
// ,但是我们实际是要访问项目中controller的insertUser
url:'../../insertUser',
type:'POST',
data:{name:name,password:password,age:age},
timeout:5000,
dataType:'text',
success:function (data) {
if(data!=null){
location.href="list.jsp"
}
}
})
}
</script>
</head>
<body>
姓名：<input type="text" name="name" id="name"/><br>
密码 ：<input type="password" name="password" id="password"/><br>
年龄：<input type="text" name="age" id="age"/><br>
<input type="button" value="提交" onclick="register()"/>
</body>
</html>
list.jsp:
<%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2020/4/15 0015
Time: 4:08
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html>
<head>
<title>用户</title>
<%
pageContext.setAttribute("basePath",request.getContextPath());
%>
<script type="text/javascript" src="${basePath}/pages/js/jquery-3.4.1.min.js"></script>
<link href="${basePath}/pages/js/bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="stylesheet">
<script src="${basePath}/pages/js/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>
</head>
<body>
<table class="table table-bordered">
<thead>
<tr>
<th>id</th>
<th>username</th>
<th>password</th>
<th>age</th>
</tr>
</thead>
<c:forEach items="${pageInfo.list}" var="users">
<tr>
<td>${users.id}</td>
<td>${users.userName}</td>
<td>${users.password}</td>
<td>${users.age}</td>
</tr>
</c:forEach>
<tfoot>
<tr >
<td colspan="6" align="center">
<ul class="pagination">
<li><a href="findUsers?pageNo=1"> 首页</a>
<!-- 上一页 -->
<c:if test="${pageInfo.hasPreviousPage }">
<li><a href="findUsers?pageNo=${pageInfo.pageNum-1 }" aria-label="Previous"> <span aria-hidden="true">«</span></a></li>
</c:if>
<!-- 当前页 -->
<c:forEach items="${ pageInfo.navigatepageNums}" var="page_Num">
<c:if test="${page_Num==pageInfo.pageNum }">
<li class="active"><a href="#">${page_Num}</a></li>
</c:if>
<c:if test="${page_Num!=pageInfo.pageNum }">
<li><a href="findUsers?pageNo=${page_Num}">${page_Num}</a></li>
</c:if>
</c:forEach>
<!-- 下一页 -->
<c:if test="${pageInfo.hasNextPage }">
<li><a href="findUsers?pageNo=${pageInfo.pageNum+1 }" aria-label="Next"><span aria-hidden="true">»</span></a></li>
</c:if>
<li><a href="findUsers?pageNo=${pageInfo.pages}"> 尾页</a></li>
</ul>
</td>
</tr>
</tfoot>
</table>
</body>
</html>
showUser.jsp:
<%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2020/4/14 0014
Time: 21:19
To change this template use File | Settings | File Templates.
--%>
<%@ 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>测试</title>
</head>
<body>
id:${user.id} <br>
userName: ${user.userName} <br>
password: ${user.password} <br>
age: ${user.age} <br>
</body>
</html>
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="showUser?id=2">ShowUser page</a><br>
<a href="findUsers?pageNo=1">list</a><br>
<a href="/maven_ssm2_war/pages/views/addUser.jsp">insertUser </a>
</body>
</html>
点击clean后，等控制台显示清除完后，再点击package,控制台显示成功后运行结果：
showUser Page: id写死了,为2
list分页:
链接：https://pan.baidu.com/s/17eH-I9p-81zZad_eLa8_aA
提取码：asjb
有问题时，可以参考：https://blog.csdn.net/qq_42739776/article/details/105475730
博主是小白，代码中可能仍存在很多问题，如果有幸能被大神看到！希望大佬指点一二，感激不尽！