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java -jar 执行spring项目的jar的SAXPars

2019-05-09  本文已影响43人  zhglance

1.问题描述

使用maven给spring项目打jar包,在执行java -jar lance-spring.jar的时候报错,具体异常信息如下:

Exception in thread "main" 
org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: 
Line 1 in XML document from class path resource [applicationContext.xml] is invalid; 
nested exception is org.xml.sax.SAXParseException; systemId: 
[http://www.springframework.org/schema/beans/spring]
(http://www.springframework.org/schema/beans/spring)-beans.xsd;
 lineNumber: 1; columnNumber: 41; s4s-elt-character: 
Non-whitespace characters are not allowed in schema 
elements other than 'xs:appinfo' and 'xs:documentation'. 
Saw 'Juniper Web Filtering'.

2.问题原因

spring-core,spring-beans,spring-tx,spring-context等jar包都分别包含了自己spring.handlers,spring.schemas文件,在打包过程中,假如maven首先打包引用了spring-tx,那么就会生成spring.handlers,spring.schemas文件,当后面打包spring-core,spring-beans,spring-context等其他spring的jar的时候,发现已经有了spring.handlers,spring.schemas这两个文件,于是就不再解析spring-core,spring-beans,spring-context等jar中的handlers和schemas内容,导致生成的spring.handlers,spring.schemas内容如下:

spring.handler和spring.schemas的位置.jpg

spring.handler只有TxNamespaceHandler


spring.handler.jpg

spring.schemas只有spring-tx(会保存所有spring的历史版本,实现兼容)


spring.schemas.jpg

3.解决方式

 <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.2.1</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <filters>
                                <filter>
//排除*.SF,*.DSA,*.RSA文件文件,否则会报java.lang.SecurityException: Invalid signature... 异常
                                    <artifact>*:*</artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SF</exclude>
                                        <exclude>META-INF/*.DSA</exclude>
                                        <exclude>META-INF/*.RSA</exclude>
                                    </excludes>
                                </filter>
                            </filters>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
//AppendingTransformer以累加的 方式放入到spring.handlers文件中
                                    <resource>META-INF/spring.handlers</resource>
                                </transformer>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
//AppendingTransformer以累加的 方式放入到spring.schemas文件中
                                    <resource>META-INF/spring.schemas</resource>
                                </transformer>
                                <transformer
                             // 指定主类           implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.lance.demo.main.MyMain</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

4.重新打包后的结果:

handler-all.jpg schemas-all.jpg

然后
java -jar lance-spring.jar执行成功。

参考资料:https://www.cnblogs.com/fuxinci/p/3356087.html

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