问题如下：
1.RESTful API在浏览器中访问，没有问题，返回结果正确。
2.在代码里调这个RESTful API就会报505错误。
调用的代码结构如下：
1.先鉴权，并保存cookie
final String userPassword = bean.getUsername() + ":" + bean.getPassword();
final String encoding = new sun.misc.BASE64Encoder().encode(userPassword.getBytes());
String ssoCookieValue = null;
try {
final URL url = new URL(bean.getServerURL() + "authentication-point/authenticate");
final HttpURLConnection conn = (HttpURLConnection)url.openConnection();
// add the timeout to the connection and read
this.setTimeout(conn);
// set the basic authentication
conn.setRequestProperty("Authorization", "Basic " + encoding);
// do get
conn.connect();
// try to authenticate the qc user and password
final int responseCode = conn.getResponseCode();
if (responseCode != HttpURLConnection.HTTP_OK) {
if (responseCode == HttpURLConnection.HTTP_UNAUTHORIZED) {
throw new RESTException(Constants.EXCEPTION_AUTH_FAIL, new String[] {});
} else if (responseCode == HttpURLConnection.HTTP_NOT_FOUND) {
throw new RESTException(Constants.EXCEPTION_NETWORK_FAIL, new String[] {});
} else {
log.error("*** response code is " + responseCode);
throw new RESTException(Constants.EXCEPTION_NETWORK_FAIL, new String[] {});
}
}
// get return cookie
ssoCookieValue = this.getCookieValue(conn, "LWSSO_COOKIE_KEY");
log.debug("Cookie for LWSSO_COOKIE_KEY: " + ssoCookieValue);
// disconnect
conn.disconnect();
} catch (IOException e) {
if (e instanceof java.net.UnknownHostException) {
throw new RESTException(Constants.EXCEPTION_UNKNOWN_HOST, new String[] {});
} else if (e instanceof java.net.SocketTimeoutException) {
throw new RESTException(Constants.EXCEPTION_CONNECTION_TIMEOUT, new String[] {});
}
}
2.然后构造connection,链接server，发出请求
final URL url = new URL(this.buildRequestURL(bean, entityId));
final HttpURLConnection conn = (HttpURLConnection)url.openConnection();
// add the timeout to the connection and read
this.setTimeout(conn);
this.buildHeader(conn, ssoCookieValue);
this.buildBody(conn, qc, entityId);
conn.connect();
3.解析response
final int responseCode = conn.getResponseCode();
final JAXBContext jaxb = JAXBContext.newInstance("com.mycompany.myproject.jaxb");
final Unmarshaller unmarshall = jaxb.createUnmarshaller();
Object result = null;
if (this.isSuccessful(responseCode)) {
result = this.handleSuccessfulResponse(unmarshall, conn);
} else {
this.handleFailedResponse(responseCode, unmarshall, conn);
}
this.setResult(result);
问题就出在第三步的第一句
final int responseCode = conn.getResponseCode();
debug到这里，看到responseCode是505.
上网搜了一下，有人说505错误是不支持HTTP/1.1造成的，解决办法是取消IE中的“使用HTTP1.1”。
我这里的IE即使勾选上“使用HTTP1.1”，调用这个RESTful API也不会出错。
为什么在代码里就会有505错误呢？
请大家指点。谢谢！
