需求：controller返回瀏覽器會渲染的html頁面字符串
1.實現方式一
直接通過HttpServletResponse以流的方式將html字符串寫到瀏覽器頁面，注意設置Header，標志讓瀏覽器以html方式處理。
PrintWriter pw =null; response.setHeader("Content-Type","text/html;charset=UTF-8"); try { pw = response.getWriter(); pw.write(sbHtml.toString()); pw.flush(); } catch (IOException e) { e.printStackTrace(); } finally { pw.close(); }
2.實現方式二
1.設置springMVC實現，設置produces 標志瀏覽器處理類型。默認是json
@RequestMapping(value = "/getPage1", produces = {MediaType.TEXT_HTML_VALUE}) @ResponseBody public String getPage1(){ StringBuffer sbHtml = new StringBuffer(); sbHtml.append("<!doctype html><html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">"); sbHtml.append("<title>支付寶即時到賬交易接口</title></head><body>77312534</body></html>"); return sbHtml.toString(); }
2.在做返回json轉化時，字符串默認會加上雙引號，瀏覽器無法解析。需在spring-mvc.xml中做一下設置：
<!-- 增加配置，controller返回字符串去掉雙引號-->
<mvc:annotation-driven>
<mvc:message-converters>
<bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
</mvc:message-converters>
</mvc:annotation-driven>
補充：
java后台操作html字符串並當作一個頁面返回給瀏覽器
引入依賴包
<dependency> <groupId>org.jsoup</groupId> <artifactId>jsoup</artifactId> <version>1.10.3</version> </dependency>
后台代碼如下
/** * 操作html字符串 * @param request * @param response * @throws IOException */ @RequestMapping("WStoHtml") public void WStoHtml(HttpServletRequest request,HttpServletResponse response) throws IOException{ String url = "http://localhost:8082/bim/static/form2/ApplicationFormTable.htm"; String body = HttpClientUtil.doPost(url);//body為獲取的html代碼 //System.out.println(body); //System.out.println("11111"); Document doc = Jsoup.parse(body); Elements es = doc.select("table"); for (Element element : es) { element.html("123");//將table的內容替換為123 } for (Element element : es) { System.out.println(element.html()); } System.out.println(doc.outerHtml()); response.setContentType("text/html;charset=utf-8"); PrintWriter out=response.getWriter(); out.println(doc.outerHtml()); }