ssm框架模糊查询和中文
程序员文章站
2024-01-15 23:52:52
...
ssm框架模糊查询和中文
主要是实现模糊查询和新增用户时添加中文字符
首先结构如下
User
package com.zhongruan.bean;
public class User {
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public void setId(int 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;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", username='" + username + '\'' +
", password='" + password + '\'' +
'}';
}
}
UserController
package com.zhongruan.controller;
import com.github.pagehelper.PageInfo;
import com.zhongruan.bean.User;
import com.zhongruan.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpSession;
import java.util.List;
@Controller
public class UserController {
@Autowired
private IUserService userService;
@RequestMapping("/findAll.do")
public ModelAndView findAll(@RequestParam(defaultValue ="1") int pageNum, @RequestParam(defaultValue ="5") int size, String searchname, HttpSession session) {
ModelAndView modelAndView = new ModelAndView();
String username=(String) session.getAttribute("username");
// if (username==null){
// modelAndView.setViewName("failure.jsp");
// return modelAndView;
// }
if (searchname!=null){
session.setAttribute("searchname",searchname);
}else {
searchname=(String) session.getAttribute("searchname");
}
List<User> users = userService.findAll(pageNum, size,searchname);
PageInfo<User> pageInfo=new PageInfo<>(users);
modelAndView.setViewName("allUser.jsp");
modelAndView.addObject("pageInfo", pageInfo);
return modelAndView;
}
@RequestMapping("/login.do")
public String login(User user,HttpSession session) {
Boolean flag = userService.login(user.getUsername(), user.getPassword());
if (flag) {
session.setAttribute("username",user.getUsername());
return "redirect:/findAll.do";
} else {
return "failure.jsp";
}
}
@RequestMapping("/delete.do")
public String deleteById(int id) {
userService.deleteById(id);
return "redirect:/findAll.do";
}
@RequestMapping("/addUser.do")
public String addById(User user) {
userService.addById(user);
return "redirect:/findAll.do";
}
@RequestMapping("/update.do")
public String update(User user) {
userService.updateById(user);
return "redirect:/findAll.do";
}
@RequestMapping("/toupdate.do")
public ModelAndView toupdate(int id) {
User user =userService.findById(id);
ModelAndView mv =new ModelAndView();
mv.addObject("user",user);
mv.setViewName("updateUser.jsp");
return mv;
}
}
IUserDao
package com.zhongruan.dao;
import com.zhongruan.bean.User;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface IUserDao {
List<User> findAll(@Param("searchname")String searchname);
User selectByUserName(String name);
void deleteById(int id);
void addById(User user);
void updateById(User user);
User findById(int id);
}
LoginFilter
package com.zhongruan.filter;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
public class LoginFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
HttpServletRequest request= (HttpServletRequest) servletRequest;
HttpServletResponse response= (HttpServletResponse) servletResponse;
HttpSession session=request.getSession();
if (session.getAttribute("username")==null&&
request.getRequestURI().indexOf("/login.do")==-1){
response.sendRedirect("index.jsp");
}else {
filterChain.doFilter(request,response);
}
}
@Override
public void destroy() {
}
}
UserService
package com.zhongruan.service.iml;
import com.github.pagehelper.PageHelper;
import com.zhongruan.bean.User;
import com.zhongruan.dao.IUserDao;
import com.zhongruan.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserService implements IUserService {
@Autowired
private IUserDao userDao;
@Override
public List<User> findAll(int pageNum,int size,String searchname) {
PageHelper.startPage(pageNum,size);
return userDao.findAll(searchname);
}
@Override
public Boolean login(String username, String password) {
User user = userDao.selectByUserName(username);
if (user != null && password.equals(user.getPassword())) {
return true;
}
return false;
}
@Override
public void deleteById(int id) {
userDao.deleteById(id);
}
@Override
public void addById(User user) {
userDao.addById(user);
}
@Override
public void updateById(User user) {
userDao.updateById(user);
}
@Override
public User findById(int id) {
return userDao.findById(id);
}
}
IUserService
package com.zhongruan.service;
import com.zhongruan.bean.User;
import java.util.List;
public interface IUserService {
List<User> findAll(int pageNum,int size,String searchname);
Boolean login(String username, String password);
void deleteById(int id);
void addById(User user);
void updateById(User user);
User findById(int id);
}
resoueces包文件如下
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/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- 1.配置数据库相关参数properties的属性：${url} -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 2.配置数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="2"/>
</bean>
<!-- 3.配置SqlSessionFactory对象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据库连接池 -->
<property name="dataSource" ref="dataSource"/>
<!-- 扫描bean包 使用别名 -->
<property name="typeAliasesPackage" value="com.zhongruan.bean"></property>
<!--配置加载映射文件 UserMapper.xml-->
<property name="mapperLocations" value="classpath:mapper/*.xml"/>
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageInterceptor">
<property name="properties">
<props>
<prop key="helperDialect">mysql</prop>
<prop key="reasonable">true</prop>
</props>
</property>
</bean>
</array>
</property>
</bean>
<!-- 自动生成dao,mapper-->
<!-- 4.配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 给出需要扫描Dao接口包 -->
<property name="basePackage" value="com.zhongruan.dao"/>
<!-- 注入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
<!--自动扫描-->
<context:component-scan base-package="com.zhongruan"/>
<!-- 配置事务-->
<!-- 5.配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 6.开启事务注解-->
<tx:annotation-driven></tx:annotation-driven>
</beans>
db.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/zjgm
jdbc.username=root
jdbc.password=123456
Log4j.properties
# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
Usermapper1.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.zhongruan.dao.IUserDao">
<select id="findAll" resultType="com.zhongruan.bean.User" parameterType="String">
select * from tb_user
<where>
<if test="searchname!=null">
username like "%"#{searchname}"%"
</if>
</where>
</select>
<select id="selectByUserName" resultType="com.zhongruan.bean.User">
select * from tb_user where username=#{username}
</select>
<select id="deleteById" parameterType="int">
delete from tb_user where id=#{id}
</select>
<select id="updateById" parameterType="com.zhongruan.bean.User">
update tb_user set username=#{username},password=#{password} where id=#{id}
</select>
<select id="addById" parameterType="com.zhongruan.bean.User">
insert into tb_user (username,password) values (#{username},#{password})
</select>
<select id="findById" parameterType="int" resultType="com.zhongruan.bean.User">
select * from tb_user where id=#{id}
</select>
</mapper>
spring-mc-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:mvc="http://www.springframework.org/schema/mvc"
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/beans
http://www.springframework.org/schema/beans/spring-beans-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/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- 1.注解扫描位置-->
<context:component-scan base-package="com.zhongruan.controller" />
<!-- 2.配置映射处理和适配器-->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
<!-- 3.视图的解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
</bean>
</beans>
addUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>新增用户</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body style="background: url(images/153_140416090512_2.jpg)">
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
基于servlet+jsp框架的管理系统：简单实现增、删、改、查。
</h1>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>新增用户</small>
</h1>
</div>
</div>
</div>
<form action="/addUser.do"
method="post">
用户姓名：<input type="text" name="username"><br><br><br>
用户密码：<input type="text" name="password"><br><br><br>
<input type="submit" value="添加" >
</form>
</div>
allUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>user列表</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body style="background: url(images/153_140416090512_2.jpg);background-size: 100%">
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
基于servlet+jsp框架的管理系统：简单实现增、删、改、查。
</h1>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>用户列表 —— 显示所有用户</small>
</h1>
</div>
</div>
</div>
<div class="row">
<div class="col-md-4 column">
<a class="btn btn-primary" href="addUser.jsp">新增</a>
</div>
<form action="/findAll.do" method="post">
<input name="searchname" type="text">
<input type="submit" value="搜索">
</form>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>id</th>
<th>用户名</th>
<th>密码</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<c:forEach var="user" items="${pageInfo.list}">
<tr>
<td>${user.id}</td>
<td>${user.username}</td>
<td>${user.password}</td>
<td><a href="/delete.do?id=${user.id}">删除</a>|
<a href="/toupdate.do?id=${user.id}">修改</a></td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
< <div>
<a href="/findAll.do?pageNum=1&size=5">首页</a>
<a href="/findAll.do?pageNum=${pageInfo.pageNum-1}&size=5">上一页</a>
<c:forEach begin="1" end="${pageInfo.pages}" var="i">
<a href="/findAll.do?pageNum=${i}&size=5">${i}</a>
</c:forEach>
<a href="/findAll.do?pageNum=${pageInfo.pageNum+1}&size=5">下一页</a>
<a href="/findAll.do?pageNum=${pageInfo.pages}&size=5">尾页</a>
</div>
</div>
failure.jsp
<%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2019/10/14 0014
Time: 10:43
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>失败</title>
</head>
<body>
登录失败
</body>
</html>
index.xml
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>登录</title>
<meta name="description" content="登录界面">
<meta name="keywords" content="登录界面">
<link href="" rel="stylesheet">
<style>
body,p,div,ul,li,h1,h2,h3,h4,h5,h6{
margin:0;
padding: 0;
}
body{
background: #E9E9E9;
}
#login{
width: 400px;
height: 250px;
background: #FFF;
margin:200px auto;
position: relative;
}
#login h1{
text-align:center;
position:absolute;
left:120px;
top:-40px;
font-size:21px;
}
#login form p{
text-align: center;
}
#user{
background:url(images/user.png) rgba(0,0,0,.1) no-repeat;
width: 200px;
height: 30px;
border:solid #ccc 1px;
border-radius: 3px;
padding-left: 32px;
margin-top: 50px;
margin-bottom: 30px;
}
#pwd{
background: url(images/pwd.png) rgba(0,0,0,.1) no-repeat;
width: 200px;
height: 30px;
border:solid #ccc 1px;
border-radius: 3px;
padding-left: 32px;
margin-bottom: 30px;
}
#submit{
width: 232px;
height: 30px;
background: rgba(0,0,0,.1);
border:solid #ccc 1px;
border-radius: 3px;
}
#submit:hover{
cursor: pointer;
background:#D8D8D8;
}
</style>
</head>
<body>
<div id="login">
<h1>登录管理</h1>
<form action="/login.do" method="post">
<p><input type="text" name="username" id="user" placeholder="用户名"></p>
<p><input type="password" name="password" id="pwd" placeholder="密码"></p>
<p><input type="submit" id="submit" value="登录"></p>
</form>
</div>
<div style="text-align:center;">
<p>更多模板：<a href="http://www.mycodes.net/" target="_blank">源码之家</a></p>
</div>
</body>
</html>
updateUser.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>新增用户</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 引入 Bootstrap -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body style="background: url(images/153_140416090512_2.jpg);background-size: 100%">
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
基于servlet+jsp框架的管理系统：简单实现增、删、改、查。
</h1>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<h1>
<small>更新用户</small>
</h1>
</div>
</div>
</div>
<form action="/update.do"
method="post">
<input type="hidden" name="id" value="${user.id}"><br><br><br>
用户姓名：<input type="text" name="username" value="${user.username}"><br><br><br>
用户密码：<input type="text" name="password" value="${user.password}"><br><br><br>
<input type="submit" value="更新" >
</form>
</div>
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"
version="3.1">
<display-name>Archetype Created Web Application</display-name>
<!-- 配置加载类路径的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:applicationContext.xml</param-value>
</context-param>
<!-- 配置监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<!-- 前端控制器（加载classpath:spring-mvc.xml 服务器启动创建servlet） -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置初始化参数，创建完DispatcherServlet对象，加载springmvc.xml配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<!-- 服务器启动的时候，让DispatcherServlet对象创建 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<filter>
<filter-name>LoginFilter</filter-name>
<filter-class>com.zhongruan.filter.LoginFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>LoginFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
<!-- 解决中文乱码过滤器 -->
<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>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
最后运行一下
结果除了实现基本的增删改，模糊查询，中文字符
上一篇： SSM框架模糊查询
下一篇： maven setting.xml详解