(本文只介绍静态化,nginx映射以及静态化更新机制后续介绍)
实现方法:
1、对Spring MVC默认的视图进行扩展,复写FreeMarkerView,添加自己想要的逻辑。(判断需要将请求后的response信息落地)
public class MyFreeMarkerView extends FreeMarkerView{ @Override protected void doRender(Map model, HttpServletRequest request, HttpServletResponse response) throws Exception { exposeModelAsRequestAttributes(model, request); SimpleHash fmModel = buildTemplateModel(model, request, response); Locale locale = RequestContextUtils.getLocale(request); /* * 默认不生成静态文件,除非在Action中进行如下设置 * model.addAttribute("STATIC_PAGE", true); */ if(model.get("STATIC_PAGE") == null || Boolean.FALSE.equals(model.get("STATIC_PAGE"))){ processTemplate(getTemplate(locale), fmModel, response); }else{ createHTML(getTemplate(locale), fmModel, request, response); } } public void createHTML(Template template, SimpleHash model,HttpServletRequest request, HttpServletResponse response) throws IOException, TemplateException, ServletException { // 静态文件根目录的绝对路径 ApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(request .getSession().getServletContext()); PropsUtil configHelper = (PropsUtil) context.getBean("configHelper"); String basePath = configHelper.getProperty("static_html_path"); // String basePath = // "D:\\Program Files\\Apache Software Foundation\\Tomcat 7.0\\webapps\\ROOT\\static\\"; // 访问的URL(根目录以后,如xxx/113.html) String requestHTML = this.getRequestHTML(request); // 静态页面保存的绝对路径 String htmlPath = basePath + requestHTML; // response路径 String responsePath = "/" + requestHTML; File htmlFile = new File(htmlPath); if (!htmlFile.getParentFile().exists()) { htmlFile.getParentFile().mkdirs(); } if (!htmlFile.exists()) { htmlFile.createNewFile(); } Writer out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(htmlFile), "UTF-8")); // 处理模版 template.process(model, out); out.flush(); out.close(); request.getRequestDispatcher(responsePath).forward(request, response); } /** * 获取要生成的静态文件相对路径 * * @param request HttpServletRequest * @return /目录/*.html */ private String getRequestHTML(HttpServletRequest request) { // web应用名称,部署在ROOT目录时为空 String contextPath = request.getContextPath(); // web应用/目录/文件,如/xxxx/1 String requestURI = request.getRequestURI(); // basePath里面已经有了web应用名称,所以直接把它replace掉,以免重复 requestURI = requestURI.replaceFirst(contextPath, ""); // 得到参数 Enumeration<?> pNames = request.getParameterNames(); while (pNames.hasMoreElements()) { String name = (String) pNames.nextElement(); String value = request.getParameter(name); requestURI = requestURI + "_" + name + "=" + value; } // 加上.html后缀 requestURI = requestURI + ".html"; return requestURI; } }
2、修改web-servlet.xml
,将默认的freemarker视图改成上面复写FreeMarkerView 的MyFreeMarkerView
<bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"> <property name="viewClass" value="xxx.xxx.xxxx.util.freemarker.MyFreeMarkerView" /> </bean>
3、在action中,进行一下设置,就可以输入静态html
model.addAttribute("STATIC_PAG", true);