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Sto provando a convalidare un record utente dal mio database utilizzando Spring Framework, RESTful Web Services e l'implementazione di Jersey.RuntimeException non può essere mappato a una risposta, re-lancio al contenitore HTTP java.lang.NullPointerException
Sto usando MySQL v5.6.0, Eclipse Galileo, Apache Tomcat v6.0
UserAccessWS.java
@Path("/user")
@Service
public class UserAccessWS {
@Autowired
private IUserService userService;
private static Logger LOGGER = Logger.getLogger(UserAccessWS.class);
@POST
@Path("/validateUser")
@Produces({ MediaType.APPLICATION_JSON })
public String getValidateUser(@Context HttpServletRequest request,
@FormParam("userName") String userName,
@FormParam("password") String password) throws JSONException {
LOGGER.info("getValidateUser method");
Users users = new Users();
users.setUserName(userName);
users.setPassword(password);
List<Users> userList = new ArrayList<Users>();
userList = userService.validateUser(users);
JSONObject userInfo = new JSONObject();
userInfo.put("authorize", true);
return userInfo.toString();
}
@POST
@Path("/login")
@Produces({ MediaType.APPLICATION_JSON })
public String userLogin(
@FormParam("userName") String userName,
@FormParam("password") String password)
throws Exception
{
LOGGER.info("in UserAccessWS::userLogin()");
JSONObject json = new JSONObject();
JSONArray jsonArr = new JSONArray();
List<Users> userList = new ArrayList<Users>();
userList = userService.userLogin(userName, password);
errore Null viene sottolineato in questa linea "userList = userService .userLogin (userName, password); "
//System.out.println(userList);
if (userList.size() == 0)
{
json.put("status", "fail");
}
else
{
json.put("status", "success");
jsonArr.add(userList.get(0));
json.put("data", jsonArr);
}
//System.out.println(jsonArr.get(0).userId);
return json.toString();
}
IUserService.java
package com.cisco.service.view;
import java.util.List;
import org.json.JSONObject;
import com.cisco.connectivity.rs.mapper.ForgotPassword;
import com.cisco.connectivity.rs.mapper.PasswordChange;
import com.cisco.connectivity.rs.mapper.Registration;
import com.cisco.model.xml.domain.Email;
import com.cisco.model.xml.domain.Users;
public interface IUserService {
public List<Users> validateUser(Users users);
public List<Users> userLogin(String userName, String password);
public String userChangePassword(PasswordChange change);
public List<Email> userForgotPassword(ForgotPassword forgot);
public JSONObject saveData(Registration registration);
public JSONObject check(String userName);
public JSONObject editData(Registration registration);
public JSONObject deleteData(Registration registration);
public JSONObject getData(Registration registration);
public JSONObject getRegistrationFormData(String userName);
}
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:jee="http://www.springframework.org/schema/jee"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/tx/spring-aop-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.0.xsd"
default-autowire="byName">
<bean id="applicationProperties"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="ignoreResourceNotFound" value="true" />
<property name="ignoreUnresolvablePlaceholders" value="true" />
<property name="searchSystemEnvironment" value="true" />
</bean>
<context:component-scan base-package="com.cisco" />
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/pooler_mgmt" />
<property name="username" value="root" />
<property name="password" value="" />
</bean>
<bean id="systemProperties" class="java.util.HashMap"></bean>
<bean id="systemEnvironment" class="java.util.HashMap"></bean>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>CiscoPoolerMgmt</display-name>
<description>CiscoPoolerMgmt</description>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:/CiscoPoolerMgmt/config/applicationContext.xml</param-value>
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath*:/CiscoPoolerMgmt/config/log4j.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- REST web service -->
<servlet>
<servlet-name>REST_stat_web_service</servlet-name>
<servlet-class>com.sun.jersey.spi.spring.container.servlet.SpringServlet</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.resourceConfigClass</param-name>
<param-value>com.sun.jersey.api.core.PackagesResourceConfig</param-value>
</init-param>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>com.cisco.ws</param-value>
</init-param>
<init-param>
<param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>REST_stat_web_service</servlet-name>
<url-pattern>/cisco_BI/rest/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
errore che sto ottenere è:
SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container
java.lang.NullPointerException
at com.cisco.ws.UserAccessWS.userLogin(UserAccessWS.java:69)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:149)
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:67)
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:259)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:133)
at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:83)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:133)
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:71)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:990)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:941)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:932)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:384)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:451)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:632)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
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.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.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)
Aug 21, 2013 12:54:21 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet REST_stat_web_service threw exception
java.lang.NullPointerException
at com.cisco.ws.UserAccessWS.userLogin(UserAccessWS.java:69)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:149)
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:67)
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:259)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:133)
at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:83)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:133)
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:71)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:990)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:941)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:932)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:384)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:451)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:632)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
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.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.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)
La banca dati da cui si deve convalidare i dati inseriti dall'utente non è vuoto. Ha i record in loro. Ma tramite questa query dà sempre una NullPointerException.
Please help me out.
Allora, qual è il valore? –
Siamo spiacenti, prima non avevo incollato il codice pertinente. Ora l'ho aggiornato. Grazie per il pin che lo punta. Sono nuovo qui. – user2639869
@ user2639869 non riesco a vedere 'implementazione IUserService' ovunque – soulcheck