jmeter 二次开发小记

1、 ant -- 解决运行时报“Class not found: javac1.8”的问题
解决：这是eclipse的编译环境与项目的要求不对应造成的，这个错误一般是导入别的项目才出现的。右键项目--属性--勾选Enable project  specific  settings--Compiler compliance level--选择1.7--OK
解决办法：
1. 进入window / preferences / java / Installed JREs 
1)按Add 
2)输入JRE Name, 例JDK1.5.0.09
3)JRE home directory, 选择安装的路径 
4)按OK 
2. 进入Project / properties / Java Bulid Path 
1)Add library 
2)选JRE System Library后按Next 
3)选workplace default JRE后按 finish... 
Error
Thu Mar 08 14:20:38 CST 2018
Cannot install remote marketplace locations: Connection failed
This is most often caused by a problem with your internet connection. Please check your internet connection and retry.
org.eclipse.core.runtime.CoreException: Unable to read repository at http://marketplace.eclipse.org/catalogs/api/p.解决：升级Ant，升级后版本为1.9.4 2、'<>' operator is not allowed for source level below 1.7



3、_p cannot be resolved to a variable ->解决：因为->是只有java8才有的，必须导入一个java8支持插件，叫Java 8 Kepler，详细步骤参考https://jingyan.baidu.com/article/d169e186a8532a436611d8a7.html
4、The project was not built since its build path is incomplete. Cannot find the class file for java.lang.Object. Fix the build pat解决：出现以上错误的原因是居然是装jdk5时了多装了个jre。本来Eclipse在建立项目时，会自动参照你的jre路径，但多个版本就没办法加载了。 
这样就行了。
5、 at 解决：解决方案是修改eclipse.ini，然后重启eclipse -vmargs-Xmx512m...-Djava.net.preferIPv4Stack=true6、运行的报错提示项目路径bin下没有log4j2.xml文件解决：去可运行的jmeter路径bin下将log4j2.xml这个文件复制过来就好了