大数据学习总结记录—页面静态化技术（Freemarker/velocity）& 网站伪静态（UrlRewriteFilter）

 1 public class Hello {
 2 
 3     public static void main(String[] args) throws IOException, TemplateException {
 4         //1.创建Configuration实例 -- 配置
 5         Configuration conf=new Configuration(Configuration.VERSION_2_3_23);
 6         conf.setNumberFormat("##,###");
 7         conf.setBooleanFormat("男孩,女孩");
 8         conf.setDateFormat("yyyy年MM月dd日");
 9         //2.设置模板加载路径
10         File dir=new File("F:\\idea_workspase\\freemarker\\src\\main\\resources");
11         conf.setDirectoryForTemplateLoading(dir);
12         //conf.setClassForTemplateLoading(FreemarkerDemo.class,"");
13 
14         //3.准备数据模型
15         Map<String,Object> dataModel=new HashMap<String, Object>();
16         dataModel.put("name","李四");
17         Boolean b = true;
18         dataModel.put("sex",b);
19 
20         //4.获取模板对象
21         Template template = conf.getTemplate("Hello.ftl", "utf-8");
22 
23         //5.将数据+模板= 输出
24         template.process(dataModel,new PrintWriter(System.out));
25 
26     }
27 }

1 hello world!!
2 ${name}
3 ${sex}

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <project xmlns="http://maven.apache.org/POM/4.0.0"
 3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5     <modelVersion>4.0.0</modelVersion>
 6 
 7     <groupId>com.baizhi</groupId>
 8     <artifactId>freemarker</artifactId>
 9     <version>1.0-SNAPSHOT</version>
10 
11     <dependencies>
12         <!-- https://mvnrepository.com/artifact/org.freemarker/freemarker -->
13         <dependency>
14             <groupId>org.freemarker</groupId>
15             <artifactId>freemarker</artifactId>
16             <version>2.3.23</version>
17         </dependency>
18     </dependencies>
19 
20 
21 </project>

  1 ===============ProductController===============
  2 @Controller
  3 @RequestMapping(value = "/product")
  4 public class ProductController {
  5     @RequestMapping(value = "/showProduct")
  6     public String showProduct(Integer id, String path, ModelMap modelMap, HttpServletRequest request) throws IOException, TemplateException {
  7         modelMap.put("id",id);
  8         modelMap.put("name","测试商品");
  9         modelMap.put("createTime",new Date());
 10         //考虑将该方法设置为异步
 11         String templateDir=request.getSession().getServletContext().getRealPath("/views");
 12         String templateName="product.ftl";
 13 
 14         String dist=request.getSession().getServletContext().getRealPath(path);
 15         System.out.println(dist);
 16         HtmlGenerateUtil.genHTML(templateDir,templateName,modelMap,dist);
 17 
 18         return "product";
 19     }
 20 
 21     /*@RequestMapping(value = "/show_{id}.html")
 22     public String showProduct2(@PathVariable(value = "id") Integer id, String path, ModelMap modelMap, HttpServletRequest request){
 23         modelMap.put("id",id);
 24         modelMap.put("name","测试商品");
 25         modelMap.put("createTime",new Date());
 26 
 27         return "product";
 28     }*/
 29 }
 30 ===============CondationFilter================
 31 public class CondationFilter extends UrlRewriteFilter {
 32 
 33     @Override
 34     public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
 35         HttpServletRequest req= (HttpServletRequest) request;
 36        if(req.getRequestURI().endsWith("html")){
 37            //先判断请求资源是否存在，如果不存在走重写逻辑
 38            boolean isExists = isStaticResourceExits((HttpServletRequest) request);
 39            System.out.println(isExists);
 40            if(!isExists){
 41                super.doFilter(request, response, chain);
 42            }else{
 43                chain.doFilter(request,response);
 44            }
 45        }else{
 46            chain.doFilter(request,response);
 47        }
 48 
 49     }
 50 
 51     /**
 52      * 判断静态资源是否纯在
 53      * @param request
 54      * @return
 55      */
 56     public static boolean isStaticResourceExits(HttpServletRequest request){
 57         String requestURI = request.getRequestURI();
 58          //System.out.println("requestURI:"+requestURI);//   /SpringMVCDemo/products/product_1.html
 59         int indexOf = requestURI.indexOf("/", 1);
 60         String requestFileURI =requestURI.substring(indexOf);//   /products/product_1.html
 61         //System.out.println("requestURI:"+requestFileURI);
 62         //  System.out.println("requestFileURI(转换):"+requestFileURI);
 63         //将网络路劲转换为 物理路径
 64         String realPath = request.getSession().getServletContext().getRealPath(requestFileURI);
 65         //System.out.println(realPath+"---");
 66         File file=new File(realPath);
 67         //System.out.println(file.getAbsolutePath());
 68        if(file.exists()){
 69            //判断文件生成时间 5s 内 文件 隐藏
 70            if((System.currentTimeMillis()-file.lastModified())<5000){
 71                return false;
 72            }
 73            //文件 最多存活 15秒
 74            System.out.println(System.currentTimeMillis()+"  "+file.lastModified()+" "+(System.currentTimeMillis()-file.lastModified()));
 75            if((System.currentTimeMillis()-file.lastModified())>15000){
 76                return false;
 77            }
 78            return true;
 79        }
 80        return false;
 81     }
 82 }
 83 ============== HtmlGenerateUtil ===============
 84 public class HtmlGenerateUtil {
 85     public static void genHTML(String templateDir, String templateName, ModelMap modelMap, String dist) throws IOException, TemplateException {
 86         Configuration conf=new Configuration(Configuration.VERSION_2_3_23);
 87         File dir = new File(templateDir);
 88         conf.setDirectoryForTemplateLoading(dir);
 89 
 90         Template template=conf.getTemplate(templateName,"utf-8");
 91         File file=new File(dist);
 92         if(file.exists()&&(System.currentTimeMillis()-file.lastModified())<15000){
 93             return;
 94         }
 95         FileOutputStream fos=new FileOutputStream(dist);
 96 
 97         OutputStreamWriter osw=new OutputStreamWriter(fos,"utf-8");
 98         template.process(modelMap,osw);
 99         osw.close();
100         fos.close();
101     }
102 }
103 ============product.ftl模板文件=================
104 
105 <html>
106 <head>
107 
108     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
109     
110     <title>product 商品static</title>
111 </head>
112 <body>
113 <h2>商品【${id}】详情</h2>
114 <h3>名字:${name}</h3>
115 <h3>创建时间:${createTime?date}</h3>
116 
117 </body>
118 </html>
119 ============mvc-servlet.xml==================
120 <?xml version="1.0" encoding="UTF-8"?>
121 <beans xmlns="http://www.springframework.org/schema/beans"
122        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
123        xmlns:mvc="http://www.springframework.org/schema/mvc"
124        xmlns:context="http://www.springframework.org/schema/context"
125        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
126 
127     <!--视图解析-->
128     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
129         <property name="prefix" value="/"></property>
130         <property name="suffix" value=".jsp"></property>
131     </bean>
132     <!--开启SpingMVC注解驱动-->
133     <mvc:annotation-driven />
134     <!--静态资源-->
135     <mvc:resources mapping="/**" location="/"/>
136     <!--文件上传-->
137     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
138         <property name="maxUploadSize" value="10240000"></property>
139     </bean>
140     <!--扫描controller组件-->
141     <context:component-scan base-package="com.baizhi.controller"/>
142 </beans>
143 ===============urlrewrite.xml=================
144 <?xml version="1.0" encoding="utf-8"?>
145 <!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 4.0//EN"
146         "http://www.tuckey.org/res/dtds/urlrewrite4.0.dtd">
147 <urlrewrite>
148 
149     <rule >
150         <from>/test/status/</from>
151         <to type="redirect">%{context-path}/rewrite-status</to>
152     </rule>
153 
154     <rule match-type="regex">
155         <from>/product/product_([0-9]+).html</from>
156         <to type="forward">/product/showProduct?id=$1&amp;path=$0</to>
157     </rule>
158 
159 </urlrewrite>
160 =================web.xml==================
161 <?xml version="1.0" encoding="UTF-8"?>
162 <web-app version="2.5"
163          xmlns="http://java.sun.com/xml/ns/javaee"
164          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
165          xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
166     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
167 
168   <display-name>Archetype Created Web Application</display-name>
169   <!--初始化参数-->
170   <context-param>
171     <param-name>contextConfigLocation</param-name>
172     <param-value>classpath*:applicationContext.xml</param-value>
173   </context-param>
174   <!--配置字符乱码filter-->
175   <filter>
176     <filter-name>encode</filter-name>
177     <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
178     <init-param>
179       <param-name>encoding</param-name>
180       <param-value>utf-8</param-value>
181     </init-param>
182   </filter>
183   <filter-mapping>
184     <filter-name>encode</filter-name>
185     <url-pattern>/*</url-pattern>
186   </filter-mapping>
187   <filter>
188     <filter-name>UrlRewriteFilter</filter-name>
189     <filter-class>com.baizhi.filter.CondationFilter</filter-class>
190   </filter>
191   <filter-mapping>
192     <filter-name>UrlRewriteFilter</filter-name>
193     <url-pattern>/*</url-pattern>
194     <dispatcher>REQUEST</dispatcher>
195     <dispatcher>FORWARD</dispatcher>
196   </filter-mapping>
197   <!--配置监听器-->
198   <listener>
199     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
200   </listener>
201   <!--配置servlet-->
202   <servlet>
203     <servlet-name>mvc</servlet-name>
204     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
205     <load-on-startup>0</load-on-startup>
206   </servlet>
207   <servlet-mapping>
208     <servlet-name>mvc</servlet-name>
209     <url-pattern>/</url-pattern>
210   </servlet-mapping>
211 </web-app>
212 =================product.jsp================
213 <%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
214 <html>
215 <head>
216     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
217     <title>product 商品详情页</title>
218 </head>
219 <body>
220 <h2>商品【${id}】详情</h2>
221 <h3>名字:${name}</h3>
222 <h3>创建时间:${createTime}</h3>
223 
224 </body>
225 </html>
226 ===================pom.xml=================
227 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
228   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
229   <modelVersion>4.0.0</modelVersion>
230   <groupId>com.baizhi</groupId>
231   <artifactId>SpringMVCDemo</artifactId>
232   <packaging>war</packaging>
233   <version>1.0-SNAPSHOT</version>
234   <name>SpringMVCDemo Maven Webapp</name>
235   <url>http://maven.apache.org</url>
236   <dependencies>
237 
238     <dependency>
239       <groupId>junit</groupId>
240       <artifactId>junit</artifactId>
241       <version>4.12</version>
242       <scope>test</scope>
243     </dependency>
244 
245     <dependency>
246       <groupId>org.springframework</groupId>
247       <artifactId>spring-beans</artifactId>
248       <version>4.2.8.RELEASE</version>
249     </dependency>
250 
251     <dependency>
252       <groupId>org.springframework</groupId>
253       <artifactId>spring-core</artifactId>
254       <version>4.2.8.RELEASE</version>
255     </dependency>
256     <dependency>
257       <groupId>org.springframework</groupId>
258       <artifactId>spring-web</artifactId>
259       <version>4.2.8.RELEASE</version>
260     </dependency>
261     <dependency>
262       <groupId>org.springframework</groupId>
263       <artifactId>spring-webmvc</artifactId>
264       <version>4.2.8.RELEASE</version>
265     </dependency>
266     <dependency>
267       <groupId>org.springframework</groupId>
268       <artifactId>spring-web</artifactId>
269       <version>4.2.8.RELEASE</version>
270     </dependency>
271 
272     <dependency>
273       <groupId>org.springframework</groupId>
274       <artifactId>spring-context</artifactId>
275       <version>4.2.8.RELEASE</version>
276     </dependency>
277 
278     <dependency>
279       <groupId>org.springframework</groupId>
280       <artifactId>spring-context-support</artifactId>
281       <version>4.2.8.RELEASE</version>
282     </dependency>
283 
284     <dependency>
285       <groupId>com.fasterxml.jackson.core</groupId>
286       <artifactId>jackson-databind</artifactId>
287       <version>2.9.0</version>
288     </dependency>
289 
290     <dependency>
291       <groupId>com.fasterxml.jackson.core</groupId>
292       <artifactId>jackson-core</artifactId>
293       <version>2.9.0</version>
294     </dependency>
295     <dependency>
296       <groupId>commons-io</groupId>
297       <artifactId>commons-io</artifactId>
298       <version>2.4</version>
299     </dependency>
300     <dependency>
301       <groupId>commons-fileupload</groupId>
302       <artifactId>commons-fileupload</artifactId>
303       <version>1.3.3</version>
304     </dependency>
305 
306     <dependency>
307       <groupId>javax.servlet.jsp</groupId>
308       <artifactId>jsp-api</artifactId>
309       <version>2.2</version>
310       <scope>provided</scope>
311     </dependency>
312     <dependency>
313       <groupId>javax.servlet</groupId>
314       <artifactId>javax.servlet-api</artifactId>
315       <version>3.0.1</version>
316       <scope>provided</scope>
317     </dependency>
318 
319     <dependency>
320       <groupId>org.tuckey</groupId>
321       <artifactId>urlrewritefilter</artifactId>
322       <version>4.0.3</version>
323     </dependency>
324 
325     <dependency>
326       <groupId>org.freemarker</groupId>
327       <artifactId>freemarker</artifactId>
328       <version>2.3.23</version>
329     </dependency>
330 
331   </dependencies>
332 
333   <build>
334     <finalName>SpringMVCDemo</finalName>
335   </build>
336 </project>