java.lang.ClassNotFoundException: org.springframework.expression.ParserContext Spring HelloWorld？

java.lang.ClassNotFoundException: org.springframework.expression.ParserContext Spring HelloWorld?

提问by Mahesha999

I have simple Spring HelloWorld program. Its contents are as follows:

我有简单的 Spring HelloWorld 程序。其内容如下：

pom.xml

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.mahesha999.examples.spring</groupId>
    <artifactId>SpringExamples</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>4.3.2.RELEASE</version>
        </dependency>       
    </dependencies>

</project>

eg1.xml

eg1.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">

    <bean id="helloBean" class="com.mahesha999.examples.spring.eg1.HelloWorld">
        <property name="name" value="Mahesha999" />
    </bean>

</beans>

HelloWorld.java

你好世界

public class HelloWorld {
    private String name;

    public void setName(String name) {
        this.name = name;
    }

    public void printHello() {
        System.out.println("Spring  : Hello ! " + name);
    }
}

App.java

应用程序.java

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("eg1.xml");

        HelloWorld obj = (HelloWorld) context.getBean("helloBean");
        obj.printHello();
    }
}

This gave me following error:

这给了我以下错误：

INFO: Loading XML bean definitions from class path resource [eg1.xml]
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/expression/ParserContext
    at org.springframework.context.support.AbstractApplicationContext.prepareBeanFactory(AbstractApplicationContext.java:628)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:516)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
    at com.mahesha999.examples.spring.eg1.App.main(App.java:8)
Caused by: java.lang.ClassNotFoundException: org.springframework.expression.ParserContext
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 5 more

When I changed spring version from 4.3.2 to 4.2.2 in pom.xml, it worked fine. Why is it so?

当我在 pom.xml 中将 spring 版本从 4.3.2 更改为 4.2.2 时，它工作正常。为什么会这样？

回答by Programming-Lover

I was also getting the same error and it got fixed after adding the spring-expression jar

我也遇到了同样的错误，在添加 spring-expression jar 后它得到了修复

回答by abaghel

I tested you code in eclipse and it is working fine with both 4.2.2.RELEASE and 4.3.2.RELEASE. It is printing below message. Can you please clean you build or run build from command prompt.

我在 eclipse 中测试了你的代码，它在 4.2.2.RELEASE 和 4.3.2.RELEASE 中都可以正常工作。它正在打印以下消息。您能否从命令提示符清理您的构建或运行构建。

Spring  : Hello ! Mahesha999

回答by Ragav

You will get this error only when there is no "spring- expression" lib.
solution 1: In case after adding spring-expression lib still exists then try adding new version of spring library.

只有当没有“spring-expression”库时，您才会收到此错误。
解决方案 1：如果添加 spring-expression 库后仍然存在，则尝试添加新版本的 spring 库。

solution 2: Delete your spring.xml file along with its packg and then create new package with spring.xml.

解决方案 2：删除 spring.xml 文件及其 packg，然后使用 spring.xml 创建新包。

回答by Avinash Khadsan

i have use spring 4.3.11 version

so add the bellow jar into lib folder

1. commons-logging-1.1.1.jar
2. servlet-api.jar
3. spring-aop-4.3.11.RELEASE.jar
4. spring-beans-4.3.11.RELEASE.jar
5. spring-context-4.3.11.RELEASE.jar
6.spring-core-4.3.11.RELEASE.jar
7. spring-expression-4.3.11.RELEASE.jar
8. spring-web-4.3.11.RELEASE.jar
9.spring-webmvc-4.3.11.RELEASE.jar

回答by Ravan

Solution : Add the "spring-expression-4.3.11.RELEASE.jar" in your project and the rebuild your project.

解决方案：在您的项目中添加“spring-expression-4.3.11.RELEASE.jar”并重建您的项目。