我在JSR223预处理器中这样编写Groovy脚本
import groovy.json.JsonSlurper;
class jmeter {
def parsingJSON(String fileName){
def payload = new File(fileName).getText();
def jsonSlurper = new JsonSlurper()
def object = jsonSlurper.parseText(payload)
vars.put("myVar", object.event_id)
return object.event_id
}
}
def running = new jmeter()
running.parsingJSON( "C:/Users/payload.json")
这将返回异常
ERROR o.a.j.m.JSR223PreProcessor: Problem in JSR223 script, JSR223 PreProcessor Dummy
javax.script.ScriptException: javax.script.ScriptException: groovy.lang.MissingPropertyException: No such property: vars for class: jmeter
但是当我删除类时,它看起来像这样
import groovy.json.JsonSlurper;
def parsingJSON(String fileName){
def payload = new File(fileName).getText();
def jsonSlurper = new JsonSlurper()
def object = jsonSlurper.parseText(payload)
vars.put("myVar", object.event_id)
return object.event_id
}
parsingJSON( "C:/Users/payload.json")
它将运行没有任何问题。
我的问题:我了解vars
是JMeter内部API,但是我们不能在Groovy脚本中使用JSR223 Sampler / PreProcessor中的vars.put()
在Groovy脚本中使用vars.get()
或class{}
JMeter?
[获取输入信息后,在19年7月1日更新]:
我用Intellij写代码,看起来像这样。它运行得很好。
import groovy.json.JsonSlurper
import org.apache.jmeter.threads.JMeterVariables
class jmeter {
JMeterVariables vars;
jmeter(JMeterVariables vars) {
this.vars = vars;
}
def parsingJSON(String fileName){
def payload = new File(fileName).getText();
def jsonSlurper = new JsonSlurper()
def object = jsonSlurper.parseText(payload)
vars.put("myVar", object.event_id)
println("My Var " + vars.get("myVar"))
return object.event_id
}
}
class runTest {
static void main(String[] args) {
JMeterVariables vars = new JMeterVariables();
def running = new jmeter(vars)
running.parsingJSON( "C:/Users/payload")
}
}
代码基本上将值放入参数myVar,因此我可以在HTTP Request Sampler中使用它。 我将其复制粘贴到JMeter JSR223 PreProcessor,然后创建HTTP Request采样器,并将$ {myVar}放入主体数据
我希望“ myVar”的值会反映在“身体数据”中。但是运行它后,在结果树侦听器中看到参数$ {myVar}而不是值。
[从Dmitry获得输入后更新,2019年7月3日]
我使用IntelliJ并编写如下代码
import groovy.json.JsonSlurper
import org.apache.jmeter.threads.JMeterVariables
class Global {
static vars = [:]
}
Global.vars.jmeterVars = vars
class jmeter {
def parsingJSON(String fileName){
def payload = new File(fileName).getText();
def jsonSlurper = new JsonSlurper()
def object = jsonSlurper.parseText(payload)
Global.vars.jmeterVars.put("myVar", object.event_id) //This will return java.lang.NullPointerException: Cannot invoke method put() on null object
println("My Var " + vars.get("myVar"))
return object.event_id
}
}
class runTest {
static void main(String[] args) {
def running = new jmeter()
running.parsingJSON( "C:/Users/payload")
}
}
这一次甚至IntelliJ都向我返回错误
Exception in thread "main" java.lang.NullPointerException: Cannot invoke method put() on null object
at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:91)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:43)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:34)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:135)
at jmeter.parsingJSON(jmeter.groovy:21)
at jmeter$parsingJSON.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:127)
at runTest.main(jmeter.groovy:38)
基本上是由Global.vars.jmeterVars.put("myVar", object.event_id)
[更新]:2019年7月17日,来自user7294900的输入
我在IntelliJ中编写了这样的代码
import groovy.json.JsonSlurper
import org.apache.jmeter.threads.JMeterVariables
class jmeter2 {
JMeterVariables vars;
jmeter2(JMeterVariables vars) {
this.vars = vars;
}
public addvar(String VarName, String value) {
vars.put(VarName, value);
}
def parsingJSON(String fileName) {
def payload = new File(fileName).getText();
def jsonSlurper = new JsonSlurper()
def object = jsonSlurper.parseText(payload)
addvar("myVar", object.event_id)
println("My Var " + vars.get("myVar"))
return object.event_id
}
}
class runTest {
static void main(String[] args) {
JMeterVariables vars = new JMeterVariables();
def running = new jmeter2(vars)
running.parsingJSON( "C:/Users/payload.json")
}
}
它在Intellij中工作得很好。我只需要向Intellij添加一些jar依赖项(slf4j-simple-1.7.2
,apachejmeter_core
,logkit-1.2.2
)。 IntelliJ将返回结果。到目前为止,一切都很好。
我通过创建JSR223 sampler
,debug sampler
和Results Tree listener
将代码复制粘贴到JMeter。
在侦听器中看不到JSR223采样器创建的任何myVar
。
JMeter日志也没有显示任何问题
2019-07-17 12:33:15,806 INFO o.a.j.s.SampleEvent: List of sample_variables: []
2019-07-17 12:33:15,806 INFO o.a.j.g.u.JMeterMenuBar: setRunning(true, *local*)
2019-07-17 12:33:15,812 INFO o.a.j.e.StandardJMeterEngine: Starting ThreadGroup: 1 : Thread Group
2019-07-17 12:33:15,812 INFO o.a.j.e.StandardJMeterEngine: Starting 1 threads for group Thread Group.
2019-07-17 12:33:15,812 INFO o.a.j.e.StandardJMeterEngine: Thread will continue on error
2019-07-17 12:33:15,812 INFO o.a.j.t.ThreadGroup: Starting thread group... number=1 threads=1 ramp-up=1 delayedStart=false
2019-07-17 12:33:15,813 INFO o.a.j.t.ThreadGroup: Started thread group number 1
2019-07-17 12:33:15,813 INFO o.a.j.e.StandardJMeterEngine: All thread groups have been started
2019-07-17 12:33:15,813 INFO o.a.j.t.JMeterThread: Thread started: Thread Group 1-1
2019-07-17 12:33:15,825 INFO o.a.j.t.JMeterThread: Thread is done: Thread Group 1-1
2019-07-17 12:33:15,825 INFO o.a.j.t.JMeterThread: Thread finished: Thread Group 1-1
2019-07-17 12:33:15,825 INFO o.a.j.e.StandardJMeterEngine: Notifying test listeners of end of test
2019-07-17 12:33:15,825 INFO o.a.j.g.u.JMeterMenuBar: setRunning(false, *local*)
文件 payload.json 仅包含一个非常简单的json
{
"event_id": "01DE95CRARFQ4X9WEKXACQYHVX",
"event_type": "form_response"
}
我不确定JMeter为什么不喜欢该脚本。 有什么想法吗?谢谢。
答案 0 :(得分:0)
如果要保持代码结构的最少更改,请考虑引入一个单独的类,该类包含静态变量,可在Groovy脚本中的任何位置访问。
类似的东西:
import groovy.json.JsonSlurper
class Global {
static vars = [:]
}
Global.vars.jmeterVars = vars
class jmeter {
def parsingJSON(String fileName) {
def payload = new File(fileName).getText();
def jsonSlurper = new JsonSlurper()
def object = jsonSlurper.parseText(payload)
Global.vars.jmeterVars.put("myVar", object.event_id)
return object.event_id
}
}
def running = new jmeter()
running.parsingJSON("C:/Users/payload.json")
更多信息:
答案 1 :(得分:0)
如果要添加变量,则需要将当前的JMeterVariables
对象传递给jmeter对象,
以下代码将变量aaa
添加到现有的JMeter变量
import org.apache.jmeter.threads.JMeterVariables;
class jmeter {
JMeterVariables vars;
jmeter(JMeterVariables vars) {
this.vars = vars;
}
public addvar() {
vars.put("aaa","bbb");
}
}
def running = new jmeter(vars);
running.addvar();
因此Intellij识别出JMeterVariables
,您将不得不从JMeter的lib \ ext文件夹中添加ApacheJMeter_core.jar