Java处理HTTP请求的相关代码，java处理请求代码,package com.

Java处理HTTP请求的相关代码，java处理请求代码,package com.

package com.http.tool;import java.io.BufferedReader;import java.io.DataOutputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;import java.util.regex.Pattern;/** * Http操作辅助工具 *  * Get和Post两者在传递参数方式上有差异 *  * 1、Get: 把参数附加到url上，比如URL="http://www.abc.com?name=123&age=18" * 2、Post：请求的url不变，但在content中加入参数，如 content="name=123&age=18",然后把content加入到post中 *  */public class HttpTool {    /**     * GET请求数据     * @param get_url url地址     * @param content  key=value形式     * @return 返回结果     * @throws Exception     */    public String sendGetData(String get_url, String content) throws Exception {        String result = "";        URL getUrl = null;        BufferedReader reader = null;        String lines = "";        HttpURLConnection connection = null;        try {            if (content != null && !content.equals(""))                get_url = get_url + "?" + content;                //get_url = get_url + "?" + URLEncoder.encode(content, "utf-8");            getUrl = new URL(get_url);            connection = (HttpURLConnection) getUrl.openConnection();            connection.connect();            // 取得输入流，并使用Reader读取            reader = new BufferedReader(new InputStreamReader(connection                    .getInputStream(), "utf-8"));// 设置编码            while ((lines = reader.readLine()) != null) {                result = result + lines;            }            return result;        } catch (Exception e) {            throw e;        } finally {            if (reader != null) {                reader.close();                reader = null;            }            connection.disconnect();        }    }    /**     * @param POST_URL url地址     * @param content  key=value形式     * @return 返回结果     * @throws Exception     */    public String sendPostData(String POST_URL, String content)            throws Exception {        HttpURLConnection connection=null;        DataOutputStream out=null;        BufferedReader reader=null;        String line = "";        String result="";        try {            URL postUrl = new URL(POST_URL);            connection= (HttpURLConnection) postUrl.openConnection();            connection.setDoOutput(true);//Let the run-time system (RTS) know that we want input            connection.setDoInput(true);//we want to do output.            connection.setRequestMethod("POST");                        connection.setUseCaches(false);// Post 请求不能使用缓存            connection.setInstanceFollowRedirects(true);            connection.setRequestProperty("Content-Type",//Specify the header content type.                    "application/x-www-form-urlencoded");            connection.connect();            out = new DataOutputStream(connection.getOutputStream()); // Send POST output.            // DataOutputStream.writeBytes将字符串中的16位的unicode字符变为utf-8的字符形式写道流里            //content = URLEncoder.encode(content, "utf-8");            out.writeBytes(content);            /**             * 如果url中带有多个key-value参数对，则采用下面的方式写到content中             * 正文内容其实跟get的URL中'?'后的参数字符串一致             *             String content =                "name=" + URLEncoder.encode ("Hitesh Agrawal") +                "&profession=" + URLEncoder.encode ("Software Engineer");            out.flush();            out.close(); */            //获取结果            reader = new BufferedReader(new InputStreamReader(                    connection.getInputStream(), "utf-8"));// 设置编码            while ((line = reader.readLine()) != null) {                result=result+line;            }                    return result;        } catch (Exception e) {            throw e;        }finally        {            if(out!=null)            {                out.close();                out=null;                            }            if(reader!=null)            {                reader.close();                reader=null;                            }            connection.disconnect();        }    }    /*     * 过滤掉html里不安全的标签，不允许用户输入这些符号     */    public static String htmlFilter(String inputString) {        //return inputString;          String htmlStr = inputString; // 含html标签的字符串          String textStr = "";          java.util.regex.Pattern p_script;          java.util.regex.Matcher m_script;          try {           String regEx_script = "<[s]*?(script|style)[^>]*?>[sS]*?<[s]*?/[s]*?(script|style)[s]*?>";            String regEx_onevent="on[^s]+=s*";           String regEx_hrefjs="href=javascript:";           String regEx_iframe="<[s]*?(iframe|frameset)[^>]*?>[sS]*?<[s]*?/[s]*?(iframe|frameset)[s]*?>";           String regEx_link="<[s]*?link[^>]*?/>";           htmlStr = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE).matcher(htmlStr).replaceAll("");            htmlStr=Pattern.compile(regEx_onevent, Pattern.CASE_INSENSITIVE).matcher(htmlStr).replaceAll("");           htmlStr=Pattern.compile(regEx_hrefjs, Pattern.CASE_INSENSITIVE).matcher(htmlStr).replaceAll("");           htmlStr=Pattern.compile(regEx_iframe, Pattern.CASE_INSENSITIVE).matcher(htmlStr).replaceAll("");           htmlStr=Pattern.compile(regEx_link, Pattern.CASE_INSENSITIVE).matcher(htmlStr).replaceAll("");           //p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);          // m_html = p_html.matcher(htmlStr);          // htmlStr = m_html.replaceAll(""); // 过滤html标签           textStr = htmlStr;          } catch (Exception e) {           System.err.println("Html2Text: " + e.getMessage());          }          return textStr;        }    public static void main(String[] args){        HttpTool ht = new HttpTool();        try {            ht.sendGetData("http://www.baidu.com", "");        } catch (Exception e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }}