/ *您好我开发了一个应用程序，其中BB应用程序需要将数据发布到服务器。 Http连接在Blackberry模拟器上工作正常，但是当我尝试在真实设备上测试时，应用程序无法将数据发布到服务器。以下是我的代码： * /
package com.sims.datahandler;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;
import com.sims.commonmethods.CommonMethods;
import com.sims.screens.MenuScreen;
/**
*
* @author SaiKrishnaPawar
*
*/
public class GPRSHandler extends Thread {
private String data;
private String url;
private String msgKey;
private String mobileNumber;
public String sendGPRSRequest() {
HttpConnection httpConn = null;
DataOutputStream oStrm = null;
DataInputStream is = null;
byte[] resp = null;
String responseData;
try {
// Creating httpconnection object to handle GPRS request
httpConn = (HttpConnection) Connector.open(url);
httpConn.setRequestMethod(HttpConnection.POST);
httpConn.setRequestProperty("User-Agent", "Profile/MIDP-2.0 Confirguration/CLDC-1.0");
httpConn.setRequestProperty("Accept_Language", "en-US");
httpConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
oStrm = httpConn.openDataOutputStream();
byte dataArray[] = (mobileNumber + "&" + msgKey + data).getBytes();
// byte dataArray[] = (msgKey + data).getBytes();
CommonMethods.getSystemOutput("msg key and data:::"+mobileNumber + msgKey + data);
for (int i = 0; i < dataArray.length; i++) {
oStrm.writeByte(dataArray[i]);
}
DataInputStream din = httpConn.openDataInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int ch;
while ((ch = din.read()) != -1) {
baos.write(ch);
}
resp = baos.toByteArray();
responseData = new String(resp);
baos.close();
din.close();
httpConn.close();
return responseData.trim();
} catch (IOException ex) {
CommonMethods.getSystemOutput("IO Exception in run method of gprs handler::" + ex.getMessage());
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
int choice = Dialog.ask(Dialog.D_OK, "No Connectivity");
exitApp(choice);
}
});
} catch (NullPointerException nex) {
CommonMethods.getSystemOutput("NullPointerException:" + nex.getMessage());
} catch (SecurityException e) {
CommonMethods.getSystemOutput("SecurityException:" + e.getMessage());
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
Dialog.ask(Dialog.OK, "Security Exception");
UiApplication.getUiApplication().pushScreen(new MenuScreen());
}
});
} finally {
try {
if (is != null) {
is.close();
}
if (oStrm != null) {
oStrm.close();
}
if (httpConn != null) {
httpConn.close();
}
} catch (Exception ex) {
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
Dialog.ask(Dialog.OK, "ERROR in While Connecting GPRS Connection");
UiApplication.getUiApplication().pushScreen(new MenuScreen());
}
});
}
}
return null;
}
public void setData(String data) {
this.data = data;
}
public void setMsgKey(String msgKey) {
this.msgKey = msgKey;
}
public void setUrl(String url) {
this.url = url + ";deviceside=false";
}
public void setMobileNumber(String mobileNumber) {
this.mobileNumber = mobileNumber;
}
private void exitApp(int choice) {
System.exit(0);
}
}
答案 0 :(得分：1)
请在此行中添加网络扩展
httpConn = (HttpConnection) Connector.open(url);
在网址的末尾请检查您是否添加了网址扩展名 假设您正在使用wifi，那么您必须添加
httpConn = (HttpConnection) Connector.open(url+";interface=wifi");
如果您想要其他类型的网络，这适用于界面，那么只需在此处引用我的答案
答案 1 :(得分：1)
httpConn = (HttpConnection) Connector.open(url);
而不是这个你可以写//
url = url + ";deviceside=false";
httpConn = (HttpConnection) Connector.open(url);