Autowired Object is coming out null for a web project - spring

Question

I am always getting autowired object null, please help. From logs beans were initialized properly.
===================================================================================
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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>RestfulService</display-name>
<!-- <welcome-file-list>
<welcome-file>Readme.html</welcome-file>
<welcome-file>index.html</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list> -->
<servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.restfulservice.gateway</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/api/*</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/ApplicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
==========================================================================================
applicationcontext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- <bean
class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/> -->
<context:component-scan base-package="com.restfulservice" />
<context:annotation-config/>
<!-- <context:property-placeholder location="classpath:testme.properties" /> -->
<bean id="incomingCall" class="com.restfulservice.gateway.IncomingCall" />
<bean id="testPropertyRead1" class="com.restfulservice.gateway.TestPropertyRead">
<property name="name" value="${name}"/>
<property name="address" value="${address}"/>
</beans>
===========================================================================================
incomingcall.java
package com.restfulservice.gateway;
import java.io.File;
import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Configurable;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
//#Path("/v1/status/*")
#Path("/v1status")
#Component
public class IncomingCall {
final static Logger logger = Logger.getLogger(IncomingCall.class);
public static final String Version = "0.0.1";
#Autowired
#Qualifier("testPropertyRead1")
private TestPropertyRead testPropertyRead;
public TestPropertyRead getTestPropertyRead() {
return testPropertyRead;
}
public void setTestPropertyRead(TestPropertyRead testPropertyRead) {
this.testPropertyRead = testPropertyRead;
}
#GET
#Produces(MediaType.TEXT_HTML)
public String returnTitle()
{
logger.debug("inside returnTitle function call");
return "<p> Java Rest Web Service JSB ....</p>";
}
#Path("/version")
#GET
#Produces(MediaType.TEXT_HTML)
public String returnVersion()
{
return "<p> Java Rest Web Service JSB ....</p>" + "Version:" + Version;
}
#Path("/testspring")
#GET
#Produces(MediaType.TEXT_HTML)
public String testSpring()
{
logger.debug("inside testSpring function call");
logger.info("sai baba is awesome he is making me work, he is my energy");
ApplicationContext context = new ClassPathXmlApplicationContext(
"SpringBeans.xml");
TestSpringSimple obj = (TestSpringSimple) context.getBean("testsprings1");
obj.printHello();
logger.info("going to call callhibernate");
obj.callHibernate();
logger.info("called callhibernate");
return "<p> Java Rest Web Service JSB ...testing spring</p>";
}
#Path("/testconfigreader")
#GET
#Produces(MediaType.TEXT_HTML)
public String testConfigReader()
{
logger.debug("inside testConfigReader function call");
/*ApplicationContext context = new ClassPathXmlApplicationContext(
"ApplicationContext.xml");
TestPropertyRead obj = (TestPropertyRead) context.getBean("testconfig");
*/
//TestPropertyRead testconfig = (TestPropertyRead) TestPropertyRead.getBean("testconfig");
return "<p> Java Rest Web Service JSB ...testing spring config reader "+ testPropertyRead.printAll()
+ "</p>";
//return "<p> Java Rest Web Service JSB ...testing spring config reader "+ ((TestPropertyRead)TestPropertyRead.getBean("testconfig")).printAll()+ "</p>";
}
/**
* Similarly one can download text data also
* #return
*/
#Path("/downloadimage")
#GET
#Produces("image/png")
public Response downloadimage()
{
logger.debug("inside downloadimage function call");
File file = new File("C:\\swamishiva.jpg");
ResponseBuilder response = Response.ok((Object) file);
response.header("Content-Disposition",
"attachment; filename=image_from_server.png");
return response.build();
}
}
===============================================================================
testpropertyRead.java
package com.restfulservice.gateway;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
#Component
public class TestPropertyRead
{
//private static ApplicationContext CONTEXT;
private String name;
private String address;
public TestPropertyRead()
{
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String printAll() {
System.out.println("name:" + name + " Address:" + address);
return "name:" + name + " Address:" + address;
}
}

Answer 1

I am pretty new to spring but generally find that when I have null pointers for Autowired properties it is because the component scan is failing.
Perhaps have a look at this question Spring Boot MVC and check if anything helps?
One I always forget about is #EnableAutoConfiguration.

Answer 2

Pom Need support of rest and spring integration:
<dependency>
<groupId>org.glassfish.jersey.ext</groupId>
<artifactId>jersey-spring3</artifactId>
<version>2.4.1</version>
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
<version>2.4.1</version>
</dependency>