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我在我的服務器中創建了soap web服務。我想用「POST」方法使用httpClient從我的soap服務中調用其他服務（在另一個服務器中）。我用「httpclient-4.2.2.jar」和「httpcore-4.2.2.jar」。InvocationTargetException - 從java中調用Rest服務使用httpClient的soap web服務
代碼片段：
public class User {
public static String addUser(String userEmail, String password) {
final String uri = "http://www.example.com/";
String requestParams = String.format("{\"userEmail\": \"%s\", \"password\": \"%s\"}", userEmail, password);
final HttpClient client = new DefaultHttpClient();
final HttpPost postMethod = new HttpPost(uri);
postMethod.setEntity(new StringEntity(requestParams, "utf-8"));
try {
final HttpResponse response = client.execute(postMethod);
final String responseData = EntityUtils.toString(response.getEntity(), "utf-8");
System.out.println(responseData);
} catch(final Exception e) {
e.printStackTrace();
}
return responseData;
}
}
當我把這個menthod使用下面的代碼的類。
User.addUser(userEmail, password);
堆棧跟蹤：
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:269)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:170)
at org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)
at org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)
at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.geronimo.tomcat.valve.DefaultSubjectValve.invoke(DefaultSubjectValve.java:56)
at org.apache.geronimo.tomcat.GeronimoStandardContext$SystemMethodValve.invoke(GeronimoStandardContext.java:406)
at org.apache.geronimo.tomcat.valve.GeronimoBeforeAfterValve.invoke(GeronimoBeforeAfterValve.java:47)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
at org.apache.geronimo.tomcat.valve.ThreadCleanerValve.invoke(ThreadCleanerValve.java:40)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.VerifyError: Cannot inherit from final class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at org.apache.geronimo.kernel.classloader.JarFileClassLoader.access$200(JarFileClassLoader.java:52)
at org.apache.geronimo.kernel.classloader.JarFileClassLoader$6.run(JarFileClassLoader.java:308)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.geronimo.kernel.classloader.JarFileClassLoader.findClass(JarFileClassLoader.java:260)
at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadOptimizedClass(MultiParentClassLoader.java:441)
at org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass(MultiParentClassLoader.java:281)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at org.apache.http.impl.client.DefaultHttpClient.createHttpParams(DefaultHttpClient.java:157)
at org.apache.http.impl.client.AbstractHttpClient.getParams(AbstractHttpClient.java:448)
at org.apache.http.impl.client.AbstractHttpClient.createClientConnectionManager(AbstractHttpClient.java:309)
at org.apache.http.impl.client.AbstractHttpClient.getConnectionManager(AbstractHttpClient.java:466)
at org.apache.http.impl.client.AbstractHttpClient.createHttpContext(AbstractHttpClient.java:286)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:851)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:784)
at com.test.User.addUser(User.java:18)
... 34 more
它拋出了 「的InvocationTargetException」。可能是什麼問題？你能提出你的建議嗎？
發佈堆棧跟蹤 - 在哪個行發生異常？ –
它會在「User.addUser（userEmail，password）」行中引發異常。 – Manoj
發佈堆棧跟蹤... InvocationTargetException正在封裝動態調用中引發的異常，所以很可能會在跟蹤中顯示實際問題的某處出現「由...引發...」。 –