jsp搜索引擎-巨人网络通讯

package coreservlets;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.net.*;

public class SearchEngines extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
String searchString = request.getParameter("searchString");
if ((searchString == null)

(searchString.length() == 0)) {
reportProblem(response, "Missing search string.");
return;
}
// The URLEncoder changes spaces to "+" signs and other
// non-alphanumeric characters to "%XY", where XY is the
// hex value of the ASCII (or ISO Latin-1) character.
// Browsers always URL-encode form values, so the
// getParameter method decodes automatically. But since
// we"re just passing this on to another server, we need to
// re-encode it.
searchString = URLEncoder.encode(searchString);
String numResults = request.getParameter("numResults");
if ((numResults == null)

(numResults.equals("0"))

(numResults.length() == 0)) {
numResults = "10";
}
String searchEngine =
request.getParameter("searchEngine");
if (searchEngine == null) {
reportProblem(response, "Missing search engine name.");
return;
}
SearchSpec[] commonSpecs = SearchSpec.getCommonSpecs();
for(int i=0; icommonSpecs.length; i++) {
SearchSpec searchSpec = commonSpecs[i];
if (searchSpec.getName().equals(searchEngine)) {
String url =
searchSpec.makeURL(searchString, numResults);
response.sendRedirect(url);
return;
}
}
reportProblem(response, "Unrecognized search engine.");
}

private void reportProblem(HttpServletResponse response,
String message)
throws IOException {
response.sendError(response.SC_NOT_FOUND,
"H2>" + message + "/H2>");
}

public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}

您可能感兴趣的文章:

jsp网页搜索结果中实现选中一行使其高亮
jsp源码实例4（搜索引擎）
php+ajax做仿百度搜索下拉自动提示框(有实例)
asp+ajax仿google搜索提示效果代码
jquery创建一个ajax关键词数据搜索实现思路
asp.net和ajax实现智能搜索功能代码
ThinkPHP实现ajax仿官网搜索功能实例
php+ajax实时输入自动搜索匹配的方法
ajax Suggest类似google的搜索提示效果
Ajax+Servlet+jsp显示搜索效果

标签：玉树吴忠绍兴肇庆潮州北海保定广元

巨人网络通讯声明：本文标题《jsp搜索引擎》，本文关键词 jsp,搜索引擎,jsp,搜索引擎,；如发现本文内容存在版权问题，烦请提供相关信息告之我们，我们将及时沟通与处理。本站内容系统采集于网络，涉及言论、版权与本站无关。