Java HttpUrlConnection form-data方式提交数据

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Java HttpUrlConnection form-data方式提交数据

发表于：2013-7-01 09:45

作者：mjh0508 来源：51Testing软件测试网采编

软件开发

java

　　public static String openUrl(String url, RequestParameter parameter) throws Exception {

URL urls = new URL(url);
HttpURLConnection connection = null;
OutputStream outputStream = null;
String rs = null;
try {
 connection = (HttpURLConnection) urls.openConnection();
 connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=----footfoodapplicationrequestnetwork");
 connection.setDoOutput(true);
 connection.setDoInput(true);
 connection.setRequestProperty("Accept-Language", "zh-CN,zh;q=0.8");
 connection.setRequestProperty("Accept", "*/*");
 connection.setRequestProperty("Range", "bytes="+"");
 connection.setConnectTimeout(8000);
 connection.setReadTimeout(20000);
 connection.setRequestMethod("POST");

 StringBuffer buffer = new StringBuffer();
 int len = 0;
 if(parameter != null)
 len = parameter.size();

 for(int i = 0; i < len; i++) {
 buffer.append("------footfoodapplicationrequestnetwork\r\n");
 buffer.append("Content-Disposition: form-data; name=\"");
 buffer.append(parameter.getKey(i));
 buffer.append("\"\r\n\r\n");
 buffer.append(parameter.getValue(i));
 buffer.append("\r\n");
 }
 if(paramer != null)
 buffer.append("------footfoodapplicationrequestnetwork--\r\n");
 outputStream = connection.getOutputStream();
 outputStream.write(buffer.toString().getBytes());
 try {
 connection.connect();
 Log.e("tag", "connection: " + connection.toString());
 if(connection.getResponseCode() == 200) {
 rs = getWebSource(connection.getInputStream());
 }
 }
 catch (Exception e) {
 rs = null;
 }

 return rs;
}
finally {
 try {
 outputStream.close();
 }
 catch (Exception e) {
 }
 outputStream = null;

 if(connection != null)
 connection.disconnect();
 connection = null;
}
}

　　提交参数有一下注意：

　　1、Content-Type参数必须写明。格式为：multipart/form-data; boundary=----footfoodapplicationrequestnetwork，前面四条短线后面自定义字符串，只要不与其他字符串冲突就行。

　　2、form-data参数格式。

buffer.append("------footfoodapplicationrequestnetwork\r\n");
buffer.append("Content-Disposition: form-data; name=\"");
buffer.append(parameter.getKey(i));
buffer.append("\"\r\n\r\n");
buffer.append(parameter.getValue(i));
buffer.append("\r\n");

　　参数说明：

　　第一行为form-data的请求头，也就是boundary前面再加两个短线，貌似必须要加上\r\n。

　　第二行为form-data的参数名。

　　3、form-data结束标志。格式为：------footfoodapplicationrequestnetwork--\r\n

　　在boundary前加两个短线，在后加两个短线和\r\n。

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