android向web提交参数的4种方式总结，附带网站案例源码

 1 package caicai.web;  2  3 import java.io.ByteArrayOutputStream;  4 import java.io.IOException;  5 import java.io.InputStream;  6 import java.io.OutputStream;  7 import java.net.httpURLConnection;  8 import java.net.URL;  9 import java.net.URLEncoder;  10 import java.util.ArrayList;  11 import java.util.HashMap;  12 import java.util.List;  13 import java.util.Map;  14 import org.apache.http.HttpResponse;  15 import org.apache.http.NameValuePair;  16 import org.apache.http.client.ClientProtocolException;  17 import org.apache.http.client.HttpClient;  18 import org.apache.http.client.entity.UrlEncodedFormEntity;  19 import org.apache.http.client.methods.HttpGet;  20 import org.apache.http.client.methods.HttpPost;  21 import org.apache.http.client.utils.URLEncodedUtils;  22 import org.apache.http.impl.client.DefaultHttpClient;  23 import org.apache.http.message.BasicNameValuePair;  24 import org.apache.http.util.EntityUtils;  25  26 public class service {  27  28 public static string get_save(String name, String phone) {  29 /**  30  * 出现乱码原因有2个 提交参数没有对中文编码，解决方法：使用URLEncoder.encode(xx,xx)对要提交的汉字转码  31  * tomatCAT服务器默认采用iso859-1编码，解决方法：把PHP页面保存为UTF-8格式  32 */  33 String path = "http://192.168.0.117/testxml/web.php";  34 Map<String, String> params = new HashMap<String, String>();  35 try {  36 params.put("name", URLEncoder.encode(name, "UTF-8"));  37 params.put("phone", phone);  38 return sendgetrequest(path, params);  39 } catch (Exception e) {  40 // TODO Auto-generated catch block  41  e.printStackTrace();  42  }  43 return "提交失败";  44  }  45  46 private static String sendgetrequest(String path, Map<String, String> params)  47 throws Exception {  48  49 // path="http://192.168.0.117/testxml/web.php?name=xx&phone=xx";  50 StringBuilder url = new StringBuilder(path);  51 url.append("?");  52 for (Map.Entry<String, String> entry : params.entrySet()) {  53 url.append(entry.getKey()).append("=");  54 url.append(entry.getValue()).append("&");  55  }  56 url.deleteCharAt(url.length() - 1);  57 URL url1 = new URL(url.toString());  58 HttpURLConnection conn = (HttpURLConnection) url1.openConnection();  59 conn.setConnectTimeout(5000);  60 conn.setRequestMethod("GET");  61 if (conn.getResponseCode() == 200) {  62 InputStream instream = conn.getInputStream();  63 ByteArrayOutputStream outstream = new ByteArrayOutputStream();  64 byte[] buffer = new byte[1024];  65 while (instream.read(buffer) != -1) {  66  outstream.write(buffer);  67  }  68  instream.close();  69 return outstream.toString().trim();  70  71  }  72 return "连接失败";  73  }  74  75 public static String post_save(String name, String phone) {  76 /**  77  * 出现乱码原因有2个 提交参数没有对中文编码，解决方法：使用URLEncoder.encode(xx,xx)对要提交的汉字转码  78  * tomatCAT服务器默认采用iso859-1编码，解决方法：把PHP页面保存为UTF-8格式  79 */  80 String path = "http://192.168.0.117/testxml/web.php";  81 Map<String, String> params = new HashMap<String, String>();  82 try {  83 params.put("name", URLEncoder.encode(name, "UTF-8"));  84 params.put("phone", phone);  85 return sendpostrequest(path, params);  86 } catch (Exception e) {  87 // TODO Auto-generated catch block  88  e.printStackTrace();  89  }  90 return "提交失败";  91  }  92  93 private static String sendpostrequest(String path,  94 Map<String, String> params) throws Exception {  95 // name=xx&phone=xx  96 StringBuilder data = new StringBuilder();  97 if (params != null && !params.isEmpty()) {  98 for (Map.Entry<String, String> entry : params.entrySet()) {  99 data.append(entry.getKey()).append("="); 100 data.append(entry.getValue()).append("&"); 101  } 102 data.deleteCharAt(data.length() - 1); 103  } 104 byte[] entiy = data.toString().getBytes(); // 生成实体数据 105 URL url = new URL(path); 106 HttpURLConnection conn = (HttpURLConnection) url.openConnection(); 107 conn.setReadTimeout(5000); 108 conn.setRequestMethod("POST"); 109 conn.setDoOutput(true);// 允许对外输出数据 110 conn.setRequestProperty("Content-Type", 111 "application/x-www-form-urlencoded"); 112 conn.setRequestProperty("Content-Length", String.valueOf(entiy.length)); 113 OutputStream outstream = conn.getOutputStream(); 114  outstream.write(entiy); 115 if (conn.getResponseCode() == 200) { 116 InputStream instream = conn.getInputStream(); 117 ByteArrayOutputStream byteoutstream = new ByteArrayOutputStream(); 118 byte[] buffer = new byte[1024]; 119 while (instream.read(buffer) != -1) { 120  byteoutstream.write(buffer); 121  } 122  instream.close(); 123 return byteoutstream.toString().trim(); 124  } 125 return "提交失败"; 126  } 127 128 public static String httpclient_postsave(String name, String phone) { 129 /** 130  * 出现乱码原因有2个 提交参数没有对中文编码，解决方法：使用URLEncoder.encode(xx,xx)对要提交的汉字转码 131  * tomatCAT服务器默认采用iso859-1编码，解决方法：把PHP页面保存为UTF-8格式 132 */ 133 String path = "http://192.168.0.117/testxml/web.php"; 134 Map<String, String> params = new HashMap<String, String>(); 135 try { 136 params.put("name", name); 137 params.put("phone", phone); 138 return sendhttpclient_postrequest(path, params); 139 } catch (Exception e) { 140 // TODO Auto-generated catch block 141  e.printStackTrace(); 142  } 143 return "提交失败"; 144  } 145 146 private static String sendhttpclient_postrequest(String path,Map<String, String> params) { 147 List<NameValuePair> pairs = new ArrayList<NameValuePair>(); 148 for (Map.Entry<String, String> entry : params.entrySet()) { 149 pairs.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); 150  } 151 try { 152 UrlEncodedFormEntity entity=new UrlEncodedFormEntity(pairs,"UTF-8"); 153 HttpPost httpost=new HttpPost(path); 154  httpost.setEntity(entity); 155 HttpClient client=new DefaultHttpClient(); 156 HttpResponse response= client.execute(httpost); 157 if(response.getStatusLine().getStatusCode()==200){ 158 159 return EntityUtils.toString(response.getEntity(), "utf-8"); 160  } 161 } catch (Exception e) { 162 // TODO Auto-generated catch block 163  e.printStackTrace(); 164  } 165 166 return null; 167  } 168 169 170 public static String httpclient_getsave(String name, String phone) { 171 /** 172  * 出现乱码原因有2个 提交参数没有对中文编码，解决方法：使用URLEncoder.encode(xx,xx)对要提交的汉字转码 173  * tomatCAT服务器默认采用iso859-1编码，解决方法：把PHP页面保存为UTF-8格式 174 */ 175 String path = "http://192.168.0.117/testxml/web.php"; 176 Map<String, String> params = new HashMap<String, String>(); 177 try { 178 params.put("name", name); 179 params.put("phone", phone); 180 return sendhttpclient_getrequest(path, params); 181 } catch (Exception e) { 182 // TODO Auto-generated catch block 183  e.printStackTrace(); 184  } 185 return "提交失败"; 186  } 187 188 private static String sendhttpclient_getrequest(String path,Map<String, String> map_params) { 189 List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>(); 190 for (Map.Entry<String, String> entry : map_params.entrySet()) { 191 params.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); 192  } 193 String param=URLEncodedUtils.format(params, "UTF-8"); 194 HttpGet getmethod=new HttpGet(path+"?"+param); 195 HttpClient httpclient=new DefaultHttpClient(); 196 try { 197 HttpResponse response=httpclient.execute(getmethod); 198 if(response.getStatusLine().getStatusCode()==200){ 199 return EntityUtils.toString(response.getEntity(), "utf-8"); 200  } 201 } catch (ClientProtocolException e) { 202 // TODO Auto-generated catch block 203  e.printStackTrace(); 204 } catch (IOException e) { 205 // TODO Auto-generated catch block 206  e.printStackTrace(); 207  } 208 return null; 209  } 210 211 }