我正在尝试将 json 字符串从我的 BlackBerry OS < 7.X 应用程序发送到我的服务器。我正在尝试使用 HTTP Post 请求。到目前为止我所做的是:
String httpURL = "http://ip_of_my_server/phpServer/receiver2.php/" + jsonString;
try {
HttpConnection httpConn;
httpConn = (HttpConnection) Connector.open(httpURL + getConnectionString());
httpConn.setRequestMethod(HttpConnection.POST);
httpConn.setRequestProperty("Content-Type", "application/json; charset=utf-8");
DataOutputStream _outStream = new DataOutputStream(httpConn.openDataOutputStream());
byte[] request_body = httpURL.getBytes();
for (int i = 0; i < request_body.length; i++) {
_outStream.writeByte(request_body[i]);
}
DataInputStream _inputStream = new DataInputStream(httpConn.openInputStream());
StringBuffer _responseMessage = new StringBuffer();
int ch;
while ((ch = _inputStream.read()) != -1) {
_responseMessage.append((char) ch);
}
String res = (_responseMessage.toString());
String response = res.trim();
System.out.println("!!!!!!!!!!!!!! Response is: " + response);
httpConn.close();
} catch (Exception e) {
Dialog.alert("Error - " + e.toString());
}
该代码以我不完全理解的方式工作。上述代码的作者建议使用httpURL
服务器的 URL + 我的 json 字符串。最终结果是,在我的服务器上,不是到达 json 字符串,而是到达这样的字符串:
http://ip_of_my_server/phpServer/receiver2.php/ + jsonString
我对java不熟悉。我以前为 WP7 和 iOS 做过这个,httpUrl
我把我的服务器 URL,然后用一个命令我将我的 json 字符串“附加”到 http 请求,一切都按预期工作。
如何将 json 字符串附加到上面的 HttpRequest ,而不是将其添加到 URL 以便服务器仅到达 JSON 字符串?
编辑(提供使用的其余代码)
//used to specify connection type ( wifi - 3g - etc )
public static String getConnectionString() {
String connectionString = null;
// Wifi is the preferred transmission method
if (WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED) {
connectionString = ";interface=wifi";
}
// Is the carrier network the only way to connect?
else if ((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_DIRECT) == CoverageInfo.COVERAGE_DIRECT) {
String carrierUid = getCarrierBIBSUid();
if (carrierUid == null) {
// Has carrier coverage, but not BIBS. So use the carrier's TCP network
connectionString = ";deviceside=true";
} else {
// otherwise, use the Uid to construct a valid carrier BIBS request
connectionString = ";deviceside=false;connectionUID="+carrierUid + ";ConnectionType=mds-public";
}
}
// Check for an MDS connection instead (BlackBerry Enterprise Server)
else if ((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_MDS) == CoverageInfo.COVERAGE_MDS) {
connectionString = ";deviceside=false";
}
// If there is no connection available abort to avoid hassling the user unnecessarily
else if (CoverageInfo.getCoverageStatus() == CoverageInfo.COVERAGE_NONE) {
connectionString = "none";
}
// In theory, all bases are covered by now so this shouldn't be reachable.But hey, just in case ...
else {
connectionString = ";deviceside=true";
}
System.out.println("!!!!!!!!!!!!!! Connection type is: " + connectionString);
return connectionString;
}
/**
* Looks through the phone's service book for a carrier provided BIBS
* network
*
* @return The uid used to connect to that network.
*/
private synchronized static String getCarrierBIBSUid() {
ServiceRecord[] records = ServiceBook.getSB().getRecords();
int currentRecord;
for (currentRecord = 0; currentRecord < records.length; currentRecord++) {
if (records[currentRecord].getCid().toLowerCase().equals("ippp")) {
if (records[currentRecord].getName().toLowerCase()
.indexOf("bibs") >= 0) {
return records[currentRecord].getUid();
}
}
}
return null;
}