快速使用layui和ssm开发
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>引入本地的lib中的jar包就可以进行开发了，不过这些我应该用不到了ssm配置太烦了，有springboot孰不喜欢呢？
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