ajax实现仿百度搜索提示（suggestion）

package suggestionlist; import java.io.IOException; import java.io.PrintWriter; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.google.gson.Gson; import com.google.gson.GsonBuilder; import dao.SearchFromMySql; @SuppressWarnings("serial") public class SuggestionServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doPost(request, response); } @SuppressWarnings("unchecked") public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("gbk"); String keyword = request.getParameter("keyword"); String kwd = new String(keyword.getBytes("iso8859-1"),"utf-8"); response.setCharacterEncoding("gbk"); response.setContentType("text/plain;charset=gbk"); PrintWriter out = response.getWriter(); Gson gson = new GsonBuilder().excludeFieldsWithoutExposeAnnotation().create(); List list = SearchFromMySql.findInfo(kwd); out.print(gson.toJson(list)); out.flush(); out.close(); } }