我试着运行从本教程复制的代码
http://www.developer.nokia.com/Community/Wiki/How_to_use_Http_POST_request_in_Java_ME
但是当我运行它时,我在源代码行
中得到异常 dis = new DataInputStream(hc.openInputStream());
java.io.IOException: 40-Error in HTTP operation
at com.sun.midp.io.j2me.http.Protocol.checkForException(+51)
at com.sun.midp.io.j2me.http.Protocol.readResponseMessage_wap(+38)
at com.sun.midp.io.j2me.http.Protocol.connect_wap(+649)
at com.sun.midp.io.j2me.http.Protocol.connect(+107)
at com.sun.midp.io.j2me.http.Protocol$PrivateOutputStream.flush(+39)
at java.io.DataOutputStream.flush(DataOutputStream.java:106)
at com.orionsource.onlinenards.api.API.sendPostRequest(API.java:221)
at com.orionsource.onlinenards.api.API.helloApiWithParams(API.java:259)
at com.orionsource.onlinenards.OnLineNards.startApp(OnLineNards.java:33)
at javax.microedition.midlet.MIDletProxy.startApp(+7)
如何解决这个问题?
一些示例代码。这会对你有帮助的。
HttpConnection hc=(HttpConnection)Connector.open(url);
DataInputStream dis = fc.openDataInputStream();