快速使用layui和ssm开发

废江_小江

发布于 2022-09-05 06:24:12

60700

代码可运行

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代码可运行

web工具类

快速生成code码返回前端：

package com.utils;
 
public enum Code {
 
    SUCCESS("1000","操作成功"),
    ERROR("1001","操作失败"),
    NODATA("1002","暂无数据"),
    LOGIN_ERROR("1003","用户名或密码错误"),
    NOT_EMPTY("1004","不能为空");
 
 
    private String code;
    private String msg;
 
    private Code(String code,String msg){
        this.code = code;
        this.msg = msg;
    }
 
    public String getCode() {
        return code;
    }
 
    public void setCode(String code) {
        this.code = code;
    }
 
    public String getMsg() {
        return msg;
    }
 
    public void setMsg(String msg) {
        this.msg = msg;
    }
}

package com.utils;
 
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
public class MapControll {
 
    //目标对象
    private Map<String,Object> paramMap = new HashMap<>();
 
    //私有构造
    private MapControll(){
 
    }
 
    public static MapControll getInstance(){
        return new MapControll();
    }
 
    public MapControll add(String key, Object value){
        paramMap.put(key,value);
        return this;
    }
 
    public MapControll success(){
        paramMap.put("code",Code.SUCCESS.getCode());
        paramMap.put("msg",Code.SUCCESS.getMsg());
        return this;
    }
    public MapControll error(){
        paramMap.put("code",Code.ERROR.getCode());//1001
        paramMap.put("msg",Code.ERROR.getMsg());//操作失败
        return this;
    }
 
    public MapControll error(String msg){
        paramMap.put("code",Code.ERROR.getCode());
        paramMap.put("msg",msg);
        return this;
    }
 
    public MapControll notEmpty(){
        paramMap.put("code",Code.NOT_EMPTY.getCode());
        paramMap.put("msg",Code.NOT_EMPTY.getMsg());
        return this;
    }
    public MapControll nodata(){
        paramMap.put("code",Code.NODATA.getCode());
        paramMap.put("msg",Code.NODATA.getMsg());
        return this;
    }
 
    public MapControll page(List<?> list,Integer count){
        paramMap.put("data",list);
        paramMap.put("count",count);
        return this;
    }
 
    public MapControll put(String key, Object value){
        this.add(key,value);
        return this;
    }
 
    public MapControll addId(Object value){
        paramMap.put("id",value);
        return this;
    }
 
    public MapControll add(Map<String,Object> map){
        for (Map.Entry<String, Object> entry : map.entrySet()) {
            paramMap.put(entry.getKey(),entry.getValue());
        }
        return this;
    }
 
    public MapControll put(Map<String,Object> map){
        return this.add(map);
    }
 
    public Map<String,Object> getMap(){
        return paramMap;
    }
 
 
 
 
}

快速生成给map中放入key-value

package com.utils;
 
import java.util.HashMap;
import java.util.Map;
 
public class MapParameter {
 
    //目标对象
    private Map<String,Object> paramMap = new HashMap<>();
 
    //私有构造
    private MapParameter(){
 
    }
 
    public static MapParameter getInstance(){
        return new MapParameter();
    }
 
    public MapParameter add(String key,Object value){
        paramMap.put(key,value);
        return this;
    }
    public MapParameter addId(Object value){
        paramMap.put("id",value);
        return this;
    }
 
    public MapParameter add(Map<String,Object> map){
        for (Map.Entry<String, Object> entry : map.entrySet()) {
            paramMap.put(entry.getKey(),entry.getValue());
        }
        return this;
    }
 
    public Map<String,Object> getMap(){
        return paramMap;
    }
 
 
 
 
}

MD5

package com.utils;
 
import org.springframework.util.DigestUtils;
 
public class MD5Utils {
 
    //盐
    private static final String salt = "MedSystemManager###$$@@";
 
    public static String getMD5(String string){
        String val = string+salt;
        return DigestUtils.md5DigestAsHex(val.getBytes());
    }
 
 
    public static void main(String[] args) {
        System.out.println(getMD5("123456"));
    }
 
 
}

利用监听器，获取全局路径

package com.utils;
 
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
public class PathInterceptor implements HandlerInterceptor {
 
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //获取全局路径，存放到request中
        String path = request.getContextPath();
        String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
        request.setAttribute("basePath",basePath);
        return true;
    }
 
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
 
    }
 
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
 
    }
}

前端

引入layui

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%--注意引入jstl-impljar包--%>
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>管理员界面</title>
    <meta name="keywords" content="layuimini,layui,layui模板,layui后台,后台模板,admin,admin模板,layui mini">
    <meta name="description" content="layuimini基于layui的轻量级前端后台管理框架，最简洁、易用的后台框架模板，面向所有层次的前后端程序,只需提供一个接口就直接初始化整个框架，无需复杂操作。">
    <meta name="renderer" content="webkit">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta http-equiv="Access-Control-Allow-Origin" content="*">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="format-detection" content="telephone=no">
    <link rel="icon" href="images/favicon.ico">
    <link rel="stylesheet" href="${basePath}static/lib/layui-src/css/layui.css" media="all">
    <link rel="stylesheet" href="${basePath}static/lib/font-awesome-4.7.0/css/font-awesome.min.css" media="all">
    <link rel="stylesheet" href="${basePath}static/css/layuimini.css?v=2.0.1" media="all">
    <link rel="stylesheet" href="${basePath}static/css/themes/default.css" media="all">
    <link rel="stylesheet" href="${basePath}static/css/public.css" media="all">
    <!--[if lt IE 9]>
    <script src="${basePath}static/js/html5.min.js"></script>
    <script src="${basePath}static/js/respond.min.js"></script>
    <![endif]-->
    <style id="layuimini-bg-color">
    </style>
</head>
<body class="layui-layout-body layuimini-all">
<div class="layui-anim layui-anim-down">
    <h2>登录成功，欢迎您~</h2>
</div>
 
<a href="medicList/" class="layui-btn">进入药品页面</a>
<a href="user" class="layui-btn">进入用户页面</a>
<a href="${basePath}" class="layui-btn">返回登录</a>
 
</div>
<script src="${basePath}static/lib/layui-src/layui.js?<%=System.currentTimeMillis()%>" charset="utf-8"></script>
<script src="${basePath}static/js/lay-config.js?v=2.0.0" charset="utf-8"></script>
 
</body>
</html>

layui绑定按钮，发送ajax的demo

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%--注意引入jstl-impljar包--%>
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>用户管理界面</title>
  <meta name="keywords" content="layuimini,layui,layui模板,layui后台,后台模板,admin,admin模板,layui mini">
  <meta name="description" content="layuimini基于layui的轻量级前端后台管理框架，最简洁、易用的后台框架模板，面向所有层次的前后端程序,只需提供一个接口就直接初始化整个框架，无需复杂操作。">
  <meta name="renderer" content="webkit">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
  <meta http-equiv="Access-Control-Allow-Origin" content="*">
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
  <meta name="apple-mobile-web-app-status-bar-style" content="black">
  <meta name="apple-mobile-web-app-capable" content="yes">
  <meta name="format-detection" content="telephone=no">
  <link rel="icon" href="images/favicon.ico">
  <link rel="stylesheet" href="${basePath}static/lib/layui-src/css/layui.css" media="all">
  <link rel="stylesheet" href="${basePath}static/lib/font-awesome-4.7.0/css/font-awesome.min.css" media="all">
  <link rel="stylesheet" href="${basePath}static/css/layuimini.css?v=2.0.1" media="all">
  <link rel="stylesheet" href="${basePath}static/css/themes/default.css" media="all">
  <link rel="stylesheet" href="${basePath}static/css/public.css" media="all">
  <!--[if lt IE 9]>
    <script src="${basePath}static/js/html5.min.js"></script>
    <script src="${basePath}static/js/respond.min.js"></script>
    <![endif]-->
  <style id="layuimini-bg-color">
    .layui-layout-body{
      overflow: scroll;
    }
  </style>
</head>
<body id="body" class="layui-layout-body layuimini-all" overflow="scroll">
<div class="layui-anim layui-anim-down">
  <h2>用户管理页面</h2>
</div>
<div class="layui-container layui-fluid">
  <table class="layui-hide" id="user"></table>
  <div class="layui-row">
    <div class="layui-col-xs6">
      <div class="grid-demo grid-demo-bg1">
        <form class="layui-form" action="${basePath}user/insertUser" method="post" name="user">
          <input type="text" name="id" id="insertId" value="" placeholder="ID" class="layui-input" required="required">
          <input type="text" name="name" placeholder="用户名" class="layui-input" required="required">
          <input type="text" name="psd" placeholder="密码" class="layui-input" required="required">
          <input type="text" name=remark placeholder="备注" class="layui-input">
          <input type="text" name="iphone" placeholder="电话" class="layui-input">
          <input type="text" name="address" placeholder="地址" class="layui-input">
          <button type="button" class="layui-btn" lay-submit="" lay-filter="login">新增一个用户信息</button>
        </form>
      </div>
    </div>
    <div class="layui-col-xs6">
      <div class="grid-demo">
        <form class="layui-form" action="${basePath}user/insertUser" method="post" name="user">
          <input type="text" name="id" id="updateId" value="" placeholder="ID" class="layui-input" required="required">
          <input type="text" name="name" placeholder="用户名" class="layui-input" required="required">
          <input type="text" name="psd" placeholder="密码" class="layui-input" required="required">
          <input type="text" name=remark placeholder="备注" class="layui-input">
          <input type="text" name="iphone" placeholder="电话" class="layui-input">
          <input type="text" name="address" placeholder="地址" class="layui-input">
          <button type="button" class="layui-btn" lay-submit="" lay-filter="update">修改某个用户信息</button>
        </form>
      </div>
    </div>
  </div>
  <hr class="layui-border-black">
  <form class="layui-form" action="${basePath}user/deleteUser" method="post" name="user">
    <input type="text" name="id" id="deleteId" value="" placeholder="ID" class="layui-input" required="required">
    <button type="button" class="layui-btn layui-btn-danger" lay-submit="" lay-filter="delete">删除一条用户信息</button>
  </form>
  <hr class="layui-border-black">
  <a href="${basePath}medic">返回首页</a>
 
</div>
 
<script src="${basePath}static/lib/jquery-3.4.1/jquery-3.4.1.min.js"></script>
<script src="${basePath}static/lib/layui-src/layui.js?<%=System.currentTimeMillis()%>" charset="utf-8"></script>
<script src="${basePath}static/js/lay-config.js?v=2.0.0" charset="utf-8"></script>
<script>
 
  layui.use(['table','jquery','form'],function(){
 
    var table = layui.table,
            $=layui.jquery,
            form=layui.form;
 
    var size;
    var getList = function (){
      $.ajax({
        url:"${basePath}user/getUser",
        data: "",
        type:"GET",
        dataType:"json",
        success:function (data){
          console.log(data);
          size=Object.keys(data).length;
          //渲染数据到table
          table.render({
            elem: '#user'
            ,cols: [[ //标题栏
              {field: 'id', title: 'ID', width: 80, sort: true}
              ,{field: 'name', title: '用户名', width: 120}
              ,{field: 'psd', title: '密码', width: 120}
              ,{field: 'remark', title: '备注', width: 120}
              ,{field: 'iphone', title: '电话', width: 120}
              ,{field: 'address', title: '地址', minwidth: 150}
            ]],
            data:data,
            even: true,
            limit:1000,
            skin:"line"
          })
          //渲染数据到提交表单
          $('#insertId').val(size+1);
 
        }
      });
    };
    getList('');
 
 
    //绑定事件，新增和删除，修改按钮
    form.on("submit(login)",function (data){
      $.ajax({
        url:"${basePath}user/insertUser",
        type:"POST",
        dataType: "json",
        data:data.field,
        success:function (data){
            layer.msg(data.msg);
            //刷新数据
          location.reload();
        }
      });
    })
 
    form.on("submit(update)",function (data){
      $.ajax({
        url:"${basePath}user/updateUser",
        type:"POST",
        dataType:"json",
        data:data.field,
        success:function (data){
          if(data.code==1000){
            layer.msg(data.msg);
            location.reload();
          }
          if(data.code ==1001){
              layer.msg(data.msg);
          }
        }
        //错误回调方法则是异常处理的部分，这不做处理
      })
    })
 
    form.on("submit(delete)",function (data){
      $.ajax({
        url:"${basePath}user/deleteUser",
        type:"POST",
        dataType:"json",
        data:data.field,
        success:function (data){
          if(data.code==1000){
            layer.msg(data.msg);
            location.reload();
          }
          if(data.code==1001){
            layer.msg(data.msg);
          }
        }
      })
    })
 
  })
</script>
 
</body>
</html>

大概就这么多，本地导入static文件后，直接复制上面的index首页就可以开始进行layui开发了，很方便。

后端

四个配置文件

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
          http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
 
  <!--整合spring的几个步骤
  1、配置前端控制器DispatcherServlet 加载Spring-mvc.xml配置文件,还有启动很多东西，加载spring容器
  2、配置Spring上下文监听器：加载applicationContext.xml文件
  3、配置编码过滤器：解决编码问题 -->
 
  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
 
  <!--上下文参数-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <!--配置spring上下文监听-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
 
  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>utf-8</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
 
 
</web-app>

spring配置文件

<?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"
       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-3.0.xsd">
 
<!--    相当于引入数据库配置文件-->
    <context:property-placeholder location="classpath:db.properties" />
    <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>
 
<!--    mybatis相关配置-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <property name="mapperLocations">
            <list>
                <value>classpath:com/dao/*.xml</value>
            </list>
        </property>
        <!--配置分页插件-->
        <property name="plugins">
            <array>
                <bean class="com.github.pagehelper.PageInterceptor">
                    <property name="properties">
                        <value>
                            helperDialect=mysql
                        </value>
                    </property>
                </bean>
            </array>
        </property>
    </bean>
 
<!--    配置mybatis扫描-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.dao"></property>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
    </bean>
 
</beans>

springmvc配置文件

<?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: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.xsd
			    http://www.springframework.org/schema/mvc
			    http://www.springframework.org/schema/mvc/spring-mvc.xsd">
 
<!--包扫描，如果扫描到@controller、@Service、@Repository、@Component则会自动注册为bean-->
    <context:component-scan base-package="com.controller,com.utils,com.service" />
 
 
<!--        @NumberFormatannotation支持，@DateTimeFormat支持，@Valid支持，读写XML的支持（JAXB），读写JSON的支持（Jackson）-->
    <mvc:annotation-driven/>
 
<!--    配置url拼接-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/page/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
 
<!--    静态资源权限开放-->
    <mvc:default-servlet-handler />
 
<!--    拦截器配置-->
    <mvc:interceptors>
        <mvc:interceptor>
            <mvc:mapping path="/**/*"/>
            <bean class="com.utils.PathInterceptor" />
        </mvc:interceptor>
        <mvc:interceptor>
            <mvc:mapping path="/**/*"/>
            <mvc:exclude-mapping path="/login"/>
            <mvc:exclude-mapping path="/logout"/>
            <mvc:exclude-mapping path="/captcha/*"/>
            <mvc:exclude-mapping path="/static/**"/>
            <bean class="com.utils.PermissionInterceptor"/>
        </mvc:interceptor>
    </mvc:interceptors>
 
</beans>

mybatis的配置文件

<?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>
<!--        添加日志，STDOUT_LOGGING是标准日志。mybatis自带的-->
        <setting name="logImpl" value="STDOUT_LOGGING" />
    </settings>
</configuration>