接下来咱们讲讲后台的实现,Servlet+XML配置,看了前端篇的朋友可能会问为何用xmlHttp,这是由于原装的才是最好的。前端
后台咱们只写了一个Servlet类,还有小小的配置了基本xml。java
让咱们轻松的看看吧。web
xml配置这个我直接上代码啦!json
<?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_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>search</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>search</servlet-name> <servlet-class>com.blackcat.SearchServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>search</servlet-name> <url-pattern>/search</url-pattern> </servlet-mapping> </web-app>
上面的search是前台编写AJAX请求url的时候设定的,要匹配。app
就是单纯的servlet配置,真的没啥很差说的。jsp
servlet类的话,更加简单了。ide
由于我是用模拟数据,而后用doGet方法,设置一下request、response的字符集UTF-8url
@Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); //得到客户端发送来的数据keyword String keyword=request.getParameter("keyword"); //处理关键字,获得关联数据 List<String> listData=getData(keyword); //返回json格式 response.getWriter().write(JSONArray.fromObject(listData).toString());; }
而后在写一个模拟的匹配方法就好啦。code