java实现课程表

import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.net.URLEncoder; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.Cookie; import org.jsoup.Jsoup; public class HttpUtils { //List<Cookie> cookies; static List<String> cookies; //保存获取的cookie //post的网址 private static String PATH = "http://202.118.88.140/loginAction.do"; private static URL url; public HttpUtils() { // TODO Auto-generated constructor stub } static{ try { url = new URL(PATH); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * @param params 填写的url的参数 * @param encode 字节编码 * @return */ public static String sendPostMessage(Map<String, String> params,String encode){ StringBuffer buffer = new StringBuffer(); String cookie; try {//把请求的主体写入正文！！ if(params != null&&!params.isEmpty()){ //迭代器 for(Map.Entry<String, String> entry : params.entrySet()){ buffer.append(entry.getKey()).append("="). append(URLEncoder.encode(entry.getValue(),encode)). append("&"); } } // System.out.println(buffer.toString()); //删除最后一个字符&，多了一个;主体设置完毕 buffer.deleteCharAt(buffer.length()-1); byte[] mydata = buffer.toString().getBytes(); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setConnectTimeout(3000); connection.setDoInput(true);//表示从服务器获取数据 connection.setDoOutput(true);//表示向服务器写数据 //获得上传信息的字节大小以及长度 connection.setRequestMethod("POST"); //是否使用缓存 connection.setUseCaches(false); //表示设置请求体的类型是文本类型 connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); connection.setRequestProperty("Content-Length", String.valueOf(mydata.length)); connection.connect(); //连接，不写也可以。。？？有待了解 // String content = "测试测试。。。"; //获得输出流，向服务器输出数据 OutputStream outputStream = connection.getOutputStream(); outputStream.write(mydata,0,mydata.length); // outputStream.write(content.getBytes("utf-8")); //获得服务器响应的结果和状态码 int responseCode = connection.getResponseCode(); if(responseCode == HttpURLConnection.HTTP_OK){ // 获取返回的cookie cookies = connection.getHeaderFields().get("Set-Cookie"); System.out.println("cookie:"+cookies); return changeInputeStream(connection.getInputStream(),encode); } } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return ""; } /** * 选课方案 * @param encode * @return */ public static String sendGetXuanKe(String encode){ InputStream inputStream = null; String URL_PATH="http://202.118.88.140/xkAction.do?actionType=6"; try { URL url = new URL(URL_PATH); if(url != null){ try { HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(); //超时时间 httpURLConnection.setConnectTimeout(3000); //表示设置本次http请求使用GET方式 httpURLConnection.setRequestMethod("GET"); for(String cookie: cookies){ httpURLConnection.addRequestProperty("Cookie", cookie.split(";",2)[0]); } int responsecode = httpURLConnection.getResponseCode(); if(responsecode == HttpURLConnection.HTTP_OK){ inputStream = httpURLConnection.getInputStream(); return changeInputeStream(inputStream,encode); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } return ""; } /** * 学期课表 * @param encode * @return */ public static String sendGetXueQiKeBiao(String encode){ InputStream inputStream = null; String URL_PATH="http://202.118.88.140/xskbAction.do?actionType=1"; try { URL url = new URL(URL_PATH); if(url != null){ try { HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(); //超时时间 httpURLConnection.setConnectTimeout(3000); //表示设置本次http请求使用GET方式 httpURLConnection.setRequestMethod("GET"); for(String cookie: cookies){ httpURLConnection.addRequestProperty("Cookie", cookie.split(";",2)[0]); } int responsecode = httpURLConnection.getResponseCode(); if(responsecode == HttpURLConnection.HTTP_OK){ inputStream = httpURLConnection.getInputStream(); return changeInputeStream(inputStream,encode);//把输入流转换成String } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } return ""; } /** * 将一个输入流转换成字符串 * @param inputStream * @param encode * @return */ private static String changeInputeStream(InputStream inputStream,String encode) { //通常叫做内存流，写在内存中的 ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); byte[] data = new byte[1024]; int len = 0; String result = ""; if(inputStream != null){ try { while((len = inputStream.read(data))!=-1){ data.toString(); outputStream.write(data, 0, len); } //result是在服务器端设置的doPost函数中的 result = new String(outputStream.toByteArray(),encode); outputStream.flush(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } return result; } public static void main(String[] arsg){ Map<String, String> params = new HashMap<String, String>(); params.put("mm", "******"); //学号 params.put("zjh", "222013****"); //姓名，隐私原因换成星号啦 String result = sendPostMessage(params,"gb2312"); System.out.println("result->"+result); result = sendGetXuanKe("gb2312"); System.out.println("result->"+result); result = sendGetXueQiKeBiao("gb2312"); //返回学期课表的网页内容 System.out.println("----------------------------------------"); System.out.println("课表result->"+result); String str = ""; System.out.println("----------------------------------------"); //System.out.println("什么东西："+str.equals(Jsoup.parse("&nbsp").text())+"->"+Jsoup.parse("&nbsp").text().toString()); ParseHtml parseHtml = new ParseHtml(result); parseHtml.parseHtml(); } }