Spring在路径中找不到配置

Question

well I'm runnning this code and it cant' find the springconfig4.xml file:

package com.nortal.pirs.test.independant;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test4 {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("/com/nortal/pirs/beans/springconfig4.xml");
        BeanFactory factory = context;
        Test3 instance = (Test3) factory.getBean("Test3");

        instance.run();
    }
}

I mean I was kind of expecting it not to work, because in Java it never works when you try to use a path that is not in your current package. However as many Spring tutorials I've seen, they all show this way of specifying the configuration file.

Now my springconfig4.xml is in my applications' src/com/nortal/pirs/beans folder. So how do I specify it so that it can be found here?

The current Test4 class is located in src/com/nortal/pirs/test/independant folder.

My stacktrace:

    2012-12-09 06:16:15,734 [main] INFO  org.springframework.context.support.AbstractApplicationContext - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@b24044e: startup date [Sun Dec 09 06:16:15 EET 2012]; root of context hierarchy
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/asm/ClassVisitor
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.<init>(AbstractAutowireCapableBeanFactory.java:121)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.<init>(AbstractAutowireCapableBeanFactory.java:168)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.<init>(DefaultListableBeanFactory.java:167)
    at org.springframework.context.support.AbstractRefreshableApplicationContext.createBeanFactory(AbstractRefreshableApplicationContext.java:195)
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:128)
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:527)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:441)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
    at com.nortal.pirs.test.independant.Test4.main(Test4.java:9)
Caused by: java.lang.ClassNotFoundException: org.springframework.asm.ClassVisitor
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 10 more

My springconfig4.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:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">

  <context:component-scan base-package="com.nortal.pirs.businesslogic.logic"></context:component-scan>
  <context:component-scan base-package="com.nortal.pirs.test.independant"></context:component-scan>

</beans>

Or is the problem somewhere else maybe?

Answer 1

Exception says it is not finding a class, not Spring context xml

Caused by: java.lang.ClassNotFoundException: org.springframework.asm.ClassVisitor

please add asm dependency

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>org.springframework.asm</artifactId>
    <version>3.1.0.RELEASE</version>
</dependency>

Answer 2

Your stacktrace points this:

java.lang.ClassNotFoundException: org.springframework.asm.ClassVisitor

You need to download the spring-asm-3.1.2.RELEASE.jar file from the maven repo (supposing that you are using spring 3.1.2) or if you are using maven, edit your pom.xml file and add the next lines:

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-asm</artifactId>
    <version>3.1.2.RELEASE</version>
</dependency>

Also, this line:

ApplicationContext context = new ClassPathXmlApplicationContext("/com/nortal/pirs/beans/springconfig4.xml");

Has an error, the path must not start with a trailing / ., so the path to the file becomes: "com/nortal/pirs/beans/springconfig4.xml" .

The ClassPathResource javadoc states that it will be removed anyways:

Create a new ClassPathResource for ClassLoader usage. A leading slash will be removed, as the ClassLoader resource access methods will not accept it.

Answer 3

添加spring-asm-3.0.1.RELEASE.jar和spring-expression-3.0.1.RELEASE.jar 。

Answer 4

java.lang.ClassNotFoundException: org.springframework.asm.ClassVisitor

Just add the spring-asm-3.1.2.RELEASE.jar file. Place it in your lib folder.

Answer 5

For the above problem as mentioned above these jars are missing namely 1.org.springframework.asm-3.0.1.RELEASE-A.jar 2.org.springframework.expression-3.0.1.RELEASE-A.jar or Add all the core Jars of Spring so that any new programmer can Run all basic level programs.

There is no need of below line in your program. insted of that you can use context insted of factory in the above program.

BeanFactory factory = context

We usually use ApplicationContext insted of BeanFactory . Even if you use BeanFactory there will be no effect for the program.

Answer 6

Add the Jars which is shown in the Screen short and it will work