Jmeter测试dubbo，消费者打包成jar问题集

唠叨一下：

1.将编写好的消费者包打包成jar来测试时，最好把jmeter的/lib/ext文件下其他非Jmeter自带的jar报备份并删掉后，再加入消费者包.jar。然后运行。不然很容易报冲突错误。

2.修改完pom.xml后记得要保存

1、jmeter测试dubbo，将消费者打成jar包放到jmeter的/lib/ext文件夹中后，启动jmeter，进行添加java请求时，报错：

报错信息：（注意下面这几条是或的关系，并不是同时出现的）

1.Configuration error, probably corrupt or missing third party library(jar) ? Could not create class: kg.apc.jmeter.reporters.LoadosophiaUploaderGui. java.lang.NoClassDefFoundError: org/apache/commons/httpclient/methods/multipart/PartSource......Caused by: java.lang.ClassNotFoundException: org.apache.commons.httpclient.methods.multipart.PartSource 或

2.org.xml.sax.SAXParseException; lineNumber: 8; columnNumber: 48; schema_reference.4: Failed to read schema document 'http://code.alibabatech.com/schema/dubbo/dub

bo.xsd', because 1) could not find the document; 2) the document could not be re

ad; 3) the root element of the document is not <xsd:schema>.或

3、rg.springframework.beans.factory.parsing.BeanDefinitionParsingException: Config

uration problem: Unable to locate Spring NamespaceHandler for XML schema namespa

ce [http://code.alibabatech.com/schema/dubbo]

Offending resource: class path resource [consumer.xml]

我的解决方法：修改pom.xml。需要进行对依赖进行打包，在<project></project>内加上以下编写：（抄自风落几番的《Jmeter对Dubbo接口进行性能测试》），修改后记得保存pom.xml

<build>
        <plugins>
           <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>1.4</version>
                <executions>
                <execution>
                <phase>package</phase>
                <goals>
                <goal>shade</goal>
                </goals>
                <configuration>        
                    <filters>
                        <filter>
                            <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">
                    <resource>META-INF/spring.handlers</resource>
                    
                    </transformer>
                    <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer" >
                    <mainClass>com.fxc.impl.member.MemberProvider</mainClass>
                    </transformer>
                    <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                    <resource>META-INF/spring.schemas</resource>
                    </transformer>
                    </transformers>
                </configuration>
                </execution>
                </executions>                   
            </plugin>
        </plugins>
    </build>    

必须吐槽一下：“这一块磨了好久，各种报错。明明看着别人写的和视频是多么容易就添加成功java请求，并运行成功，到我这里就是出不来，最后是看了风落几番的《Jmeter对Dubbo接口进行性能测试》后知道打包原来是需要对依赖进行打包的””

2、jmeter测试dubbo，将消费者打成jar包放到jmeter的/lib/ext文件夹中后，启动jmeter，直接报错，报错信息：

An error occurred: class org.springframework.core.type.classreading.EmptyFieldVi sitor has interface org.springframework.asm.FieldVisitor as super class errorlevel=1

我的解决方法：修改pom.xml在dubbo的依赖上排除spring这个包的依赖如下：（修改后记得保存pom.xml）

<dependency>
                            <groupId>com.alibaba</groupId>
                            <artifactId>dubbo</artifactId>
                            <version>2.5.3</version>
                            <exclusions>
                                     <exclusion>
                                               <groupId>org.springframework</groupId>
                                               <artifactId>spring</artifactId>
                                     </exclusion>
                            </exclusions>
                   </dependency>

这个报错应该是不同版本的spring起冲突了，dubbo那自带有个spring，需要把它排除打包，加上<exclusion></exclusion>就能排除掉（不知我理解的对不对）