我正在尝试编写一个程序，该程序将使用 E*Trade API 在沙盒环境中交易股票。我使用他们的示例代码作为指导，目前遇到了 .getAuthorizeURL() 方法的问题。它说它对于 String 类型是未定义的，但是，在反编译 OAuth jar 之后，我对如何解决这个问题陷入了困境。
import com.etrade.etws.account.Account;
import com.etrade.etws.account.AccountListResponse;
import com.etrade.etws.oauth.sdk.client.IOAuthClient;
import com.etrade.etws.oauth.sdk.client.OAuthClientImpl;
import com.etrade.etws.oauth.sdk.common.Token;
import com.etrade.etws.sdk.client.ClientRequest;
import com.etrade.etws.sdk.client.Environment;
import com.etrade.etws.sdk.common.ETWSException;
import com.etrade.*;
import java.awt.Desktop;
import java.net.URI;
import java.*;
import java.io.IOException;
public class OAuth
{
public static void main(String[] args) throws IOException, ETWSException
{
//Variables
IOAuthClient client = null;
ClientRequest request = null;
Token token = null;
String oauth_consumer_key = null; // Your consumer key
String oauth_consumer_secret = null; // Your consumer secret
String oauth_request_token = null; // Request token
String oauth_request_token_secret = null; // Request token secret
client = OAuthClientImpl.getInstance(); // Instantiate IOAUthClient
request = new ClientRequest(); // Instantiate ClientRequest
request.setEnv(Environment.SANDBOX); // Use sandbox environment
request.setConsumerKey(oauth_consumer_key); //Set consumer key
request.setConsumerSecret(oauth_consumer_secret);
token = client.getRequestToken(request); // Get request-token object
oauth_request_token = token.getToken(); // Get token string
oauth_request_token_secret = token.getSecret(); // Get token secret
}
public String Verification(String client, ClientRequest request)
{
String authorizeURL = null;
authorizeURL = client.getAuthorizeUrl(request); // E*TRADE authorization URL
URI uri = new java.net.URI(authorizeURL);
Desktop desktop = Desktop.getDesktop();
desktop.browse(uri);
return authorizeURL;
}
}
堆栈跟踪
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/log4j/Logger
at com.etrade.etws.oauth.sdk.client.OAuthClientImpl.<init>(OAuthClientImpl.java:22)
at com.etrade.etws.oauth.sdk.client.OAuthClientImpl.<clinit>(OAuthClientImpl.java:24)
at OAuth.main(OAuth.java:29)
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Logger
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 3 more