spring-webmvc 4.3.4 与 freemarker、easyui 整合

一、所需lib包





二、web.xml配置

<?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">

<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>

<!-- 配置DispatchcerServlet -->
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置Spring mvc下的配置文件的位置和名称 -->
<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>

三、src/springmvc.xml 配置

<?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"> 
<!-- 配置自动扫描的包 -->
<context:component-scan base-package="com.lixj"></context:component-scan>
<!-- 配置以下内容以支持静态资源访问 -->
<mvc:default-servlet-handler/>
<mvc:annotation-driven>
<mvc:message-converters>
<!-- 避免返回JSON出现下载文件 -->
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>

<!-- 配置视图解析器 如何把handler 方法返回值解析为实际的物理视图
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name = "prefix" value="/views/"></property>
<property name = "suffix" value = ".jsp"></property>
</bean>
-->
<!-- 设置freeMarker的配置文件路径 -->
<bean id="freemarkerConfiguration" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="location" value="classpath:freemarker.properties"/>
</bean>

<!-- 配置freeMarker的模板路径 -->
<bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
<property name="freemarkerSettings" ref="freemarkerConfiguration"/>
<property name="templateLoaderPath">
<value>/ftl/</value>
</property>
<property name="freemarkerVariables">
<map>
<entry key="xml_escape" value-ref="fmXmlEscape" />
</map>
</property>
</bean>

<!-- 配置freeMarker视图解析器 -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.freemarker.FreeMarkerView"/>
<property name="contentType" value="text/html; charset=utf-8"/>
<property name="cache" value="false"/>
<property name = "suffix" value = ".ftl"></property>
<property name="exposeRequestAttributes" value="true" />
<property name="exposeSessionAttributes" value="true" />
<property name="exposeSpringMacroHelpers" value="true" />
</bean>

<bean id="fmXmlEscape" class="freemarker.template.utility.XmlEscape" />

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="1046666000"/>
<property name="maxInMemorySize" value="4096" />
<property name="defaultEncoding" value="UTF-8"></property>
</bean>

</beans>

四、src/freemarker.properties 配置

#设置标签类型：square_bracket:[]     auto_detect:[]<>
tag_syntax=auto_detect
#模版缓存时间，单位：秒
template_update_delay=0
default_encoding=UTF-8
output_encoding=UTF-8
locale=zh_CN
#设置数字格式 ，防止出现 000.00
number_format=\#
#变量为空时，不会报错
classic_compatible=true
#这个表示每个freemarker的视图页面都会自动引入这个ftl文件。里面定议的就是一些宏，如text文本框，各种form元素
#auto_import="/WEB-INF/templates/index.ftl" as do

五、FreemarkerController.java 代码

package com.lixj;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.multipart.MultipartFile;

@Controller
public class FreemarkerController {

@RequestMapping("/hi")
public String sayHello(ModelMap map){
System.out.println("say hi....");
map.put("name","kimi");
map.put("name2","李");
return "hi";
}

@RequestMapping(value = "/hi/{id}/{name}")
public String helloPathVar(@PathVariable(value = "id") Integer id,
@PathVariable(value = "name") String name, ModelMap map) {
System.out.println("PathVariable  id=" + id + "   name=" + name);
map.put("id",id);
map.put("name",name);
return "hi";
}

@RequestMapping(value = "/testPojo") //, method = RequestMethod.POST
public String testPojo(@RequestParam(value = "flag", required = false, defaultValue = "yes") String flag,
User user, ModelMap map) {
System.out.println("flag: " + flag);
System.out.println("testPojo: " + user.toString());
map.put("name", user.getUsername());
return "hi";
}

@RequestMapping(value="/json")
@ResponseBody
public Object getJson(){
HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();
List list = new ArrayList();
Map<String, Object> map1 = new HashMap<String, Object>();
map1.put("text", "LIXJ");
map1.put("id", "123");
list.add(map1);

Map<String, Object> map2 = new HashMap<String, Object>();
map2.put("text", "测试");
map2.put("id", "222");
list.add(map2);
return list;
}

@RequestMapping("/fileUpload")
public String fileUpload(@RequestParam("file") MultipartFile file, HttpServletRequest request) {
if (!file.isEmpty()) {
try {
String filePath = request.getSession().getServletContext().getRealPath("/") + "upload/"
+ file.getOriginalFilename();
file.transferTo(new File(filePath));
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return "redirect:/index.jsp";
}
}

六、index.jsp代码

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta name="content-type" content="text/html; charset=UTF-8">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<link rel="stylesheet" type="text/css" href="/easyui/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="/easyui/themes/icon.css">
<script type="text/javascript" src="/easyui/jquery.min.js"></script>
<script type="text/javascript" src="/easyui/jquery.easyui.min.js"></script>

</head>

<body>

<form action="/fileUpload" method="post" accept-charset="utf-8" enctype="multipart/form-data">
<input type="file" name="file" >
<input type="hidden" name="flag" value="update"><br>
username: <input type="text" name="username"><br>

password: <input type="password" name="password"><br>

email: <input type="text" name="email"><br>

age: <input type="text" name="age"><br>

city: <input type="text" name="address.city"><br>

province: <input type="text" name="address.province"><br>

<input type="submit" value="submit">

</form><br/><br/>
<div style="margin-bottom:20px">
<input id="language" class="easyui-combobox" name="language" style="120px" data-options="
url:'/json',
method:'get',
valueField: 'id',
textField: 'text',
label: 'Language:',
labelPosition: 'top'
" />
</div>

</body>
</html>

七、webRoot/ftl/hi.ftl 代码：
<html>
<body>
<h1>id=${id} : name=${name} name2=${name2}</h1><br/>
</body>
</html>

八、页面访问地址 http://localhost:90/hi/1/33