参考文章:http://blog.csdn.net/snack8310/article/details/52275960 (方便使用,贴出文章片段,如有侵权,请联系删除!)
dubbo项目启动时报错,已经配置eclipse,本地成功,但是Jenkins+maven+github时仍然出错。采用第二种方法。
解决该问题主要有两种办法。
1. eclipse中修改xml参照路径,索引到本地dubbo.xsd文件(有一定限制),网上查找的大部分为该方法。
注意在工具自动拼出来的路径后面加上 /dubbo.xsd。就是类似 xxx/dubbo/dubbo.xsd 这样的一行。
2. 将dubbo.xsd文件编译在工程中(通用)
将dubbo.xsd保存在工程的classpath目录中,并且在dubbo的XMLschema的参照出,修改为参照项目的工程路径下文件,代码如下:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://code.alibabatech.com/schema/dubbo classpath:/dubbo.xsd">
本项目由于使用jenkins自动编译,无法通过本地eclipse导入的办法,只能采用办法2,这样其他人修改时也不受影响。唯一的问题是编译的内容略微增加,系统代码有一点点侵入。
注意事项
按照办法2修改时,系统会出现 Unable to locate Spring NamespaceHandler for XML schema namespace 的错误,如下
ERROR org.springframework.web.context.ContextLoader -
Context initialization failed
org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from URL location [classpath:/beans/dubbo-consumer.xml]
Offending resource: class path resource [beans/applicationContext.xml]; nested exception is org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://code.alibabatech.com/schema/dubbo]
Offending resource: class path resource [beans/dubbo-consumer.xml]
就是提示无法指向XMLschema namespace,出现该问题说明刚才的修改已经成功,但是本项目中参照dubbo服务失败,需要在pom文件中显示指定dubbo相关的参照。Provider提供的API中指定的dubbo服务无法使用在本项目中。
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
<exclusions>
<exclusion>
<artifactId>spring</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.6</version>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency>
如果有打包入口类报错:
Exception in thread "main" org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://code.alibabatech.com/schema/dubbo]
按如下处理:
<build> <plugins> <!-- <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-shade-plugin</artifactId> <version>3.1.0</version> <executions> <execution> <phase>package</phase> <goals> <goal>shade</goal> </goals> <configuration> <transformers> <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"> <resource>META-INF/spring.handlers</resource> </transformer> <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"> </transformer> <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"> <mainClass>org.global.fairy.service.impl.Assembly</mainClass> </transformer> </transformers> </configuration> </execution> </executions> </plugin> </plugins> </build>增加
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"> <resource>META-INF/spring.handlers</resource> </transformer> <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"> </transformer>打包入口类的时候,覆盖旧有的spring.schema