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我有一个用于Eclipse的Java插件创建的Java应用程序。我想通过Blackberry mds在网络服务器上调用web服务。我使用的代码有效，但并不稳定。这意味着我成功地连续100次与Web服务器联系，但过了一段时间，连接中断。来自Blackberry的日志文件很多，并且不容易阅读，但至少我觉得“无效套接字”这个短语对我不好。黑莓：通过黑莓企业服务器调用webservice的Java应用程序
我在我的代码中使用了StreamConnection类，但是我从一些示例代码中看到使用了httpConnection。任何人都知道何时使用HttpConnection而不是StreamConnection？
我在这里粘贴我的代码。也许有些人看到什么我应该做不同的：
private boolean sendStatusMessage(String phoneNumber, String status) {
StreamConnection conn = null;
OutputStream output = null; //mari added
try {
String body = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:i3w=\"http://I3WebAction\">"
+ "<soapenv:Header/>"
+ "<soapenv:Body>"
+ "<i3w:I3SetMobileStatus><i3w:p_Status>"
+ status
+ "</i3w:p_Status><i3w:p_PhoneNumber>"
+ phoneNumber
+ "</i3w:p_PhoneNumber>"
+ "</i3w:I3SetMobileStatus></soapenv:Body></soapenv:Envelope>";
String URL = "socket://" + soapServer + ":" + port
+ ";deviceside=false";
conn = (StreamConnection) Connector.open(URL);
//OutputStream output = conn.openOutputStream();
output = conn.openOutputStream();
OutputStreamWriter writer = new OutputStreamWriter(output);
writer.write("POST /SOAPListener/I3SOAPISAPIU.dll HTTP/1.1\r\n");
writer.write("Accept-Encoding: gzip,deflate\r\n");
writer.write("Content-Type: text/xml;charset=UTF-8\r\n");
writer.write("SOAPAction: \"http://I3WebAction/I3SetMobileStatus\"\r\n");
writer.write("User-Agent: Jakarta Commons-HttpClient/3.1\r\n");
writer.write("Host: lvkdb01\r\n");
writer.write("Content-Length: " + body.length() + "\r\n");
writer.write("\r\n");
writer.write(body);
writer.flush();
writer.close(); //mari added
} catch (Exception e) {
Dialog.alert(e.getMessage());
return false;
} finally {
try {
// Close stream regardless of exceptions and return-points
output.close();
} catch (IOException e) {
// If closing the stream causes exception, the stream is most
// likely not open or available. We display an error message,
// and continues the program.
Dialog.alert(e.getMessage());
return false;
}
try {
// Close stream regardless of exceptions and return-points
conn.close();
} catch (IOException e) {
// If closing the stream causes exception, the stream is most
// likely not open or available. We display an error message,
// and continues the program.
Dialog.alert(e.getMessage());
return false;
}
}
return true;
}
我明白为什么这个代码不运行的稳定有任何意见或想法。