Java后台发送Post和get请求
来源:互联网 发布:达内java培训视频下载 编辑:程序博客网 时间:2024/05/16 17:08
public class HttpRequest { public static String sendGet(String url, String param) { String result = ""; BufferedReader in = null; try { String urlNameString = url + "?" + param; URL realUrl = new URL(urlNameString); URLConnection connection = realUrl.openConnection(); connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); connection.setRequestProperty("Accept-Charset", "utf-8"); connection.setRequestProperty("contentType", "utf-8"); connection.connect(); Map<String, List<String>> map = connection.getHeaderFields(); for (String key : map.keySet()) { } in = new BufferedReader(new InputStreamReader( connection.getInputStream(),"utf-8")); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { System.out.println("发送GET请求出现异常!" + e); e.printStackTrace(); } finally { try { if (in != null) { in.close(); } } catch (Exception e2) { e2.printStackTrace(); } } return result; } public static String sendPost(String url, String param) { PrintWriter out = null; BufferedReader in = null; String result = ""; try { URL realUrl = new URL(url); URLConnection conn = realUrl.openConnection(); conn.setRequestProperty("accept", "*/*"); conn.setRequestProperty("connection", "Keep-Alive"); conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); conn.setDoOutput(true); conn.setDoInput(true); out = new PrintWriter(conn.getOutputStream()); out.print(param); out.flush(); in = new BufferedReader( new InputStreamReader(conn.getInputStream())); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { System.out.println("发送 POST 请求出现异常!"+e); e.printStackTrace(); } finally{ try{ if(out!=null){ out.close(); } if(in!=null){ in.close(); } } catch(IOException ex){ ex.printStackTrace(); } } return result; } public static void main(String[] args) { JcLogEntity f=getJcLogData("10.141.71.251:8080").get(1); System.out.println(f.getTitle()); } public static ArrayList<CmsUserInfo> getData(String ipport) { System.out.println(ipport); String s=HttpRequest.sendGet("http://"+ipport+"/spcms/mobile/info/getlist.jspx?pageSize=15&pageNow=1&timeStamp=1431678427563", ""); System.out.println(s); JSONArray us=JSON.parseObject(s).getJSONArray("data"); ArrayList<CmsUserInfo> al=new ArrayList<CmsUserInfo>(); for(int i=0;i<us.size();i++) { String temp=us.get(i).toString(); System.out.println(temp ); CmsUserInfo cui=(CmsUserInfo) JSON.parseObject(temp.replaceAll("GPS","gps"), CmsUserInfo.class); System.out.println(cui.getGps()); al.add(cui); } return al; } public static List<JcLogEntity> getJcLogData(String ipport) { System.out.println(ipport); String s=HttpRequest.sendGet("http://"+ipport+"/spcms/datatransfer/getLog.jspx?pageSize=99999&timeStamp=1431678427563", ""); System.out.println(s); List<JcLogEntity> re= JSONUtils.jsonToEntityArray(s,JcLogEntity.class); return re; }乱码问题解决办法: connection.setRequestProperty("Accept-Charset", "utf-8"); connection.setRequestProperty("contentType", "utf-8"); in = new BufferedReader(new InputStreamReader( connection.getInputStream(),"utf-8"));
转自
http://blog.csdn.net/gzdxrenmin/article/details/50599456
0 0