在方法调用中获取变量数据时获取空指针

问题描述 投票：0回答：1

在 Jmeter 脚本中，我使用 JSON 提取器在 2 个变量中收集了一些数据，并在两个 JSON 提取器中将匹配号设置为 -1。现在我需要使用 JSR223 断言检查 API 中第二个变量是否包含第一个变量的数据。我使用的代码是：

// Get the value of dependentFeatID variable from JMeter variables
String dependentFeatID = vars.get("dependentFeatID")

// Check if dependentFeatID is not null
if (dependentFeatID != null) {
    // Split the dependentFeatID into an array of IDs
    String[] dependentFeatIDs = dependentFeatID.split(",")

    // Check if dependentFeatIDs array is not empty
    if (dependentFeatIDs.length > 0) {
        // Get the first ID from dependentFeatIDs array
        String searchString = dependentFeatIDs[0]

        log.info("searchString: $searchString")

        log.info(dependentFeatIDs[1]+"AND "+dependentFeatIDs[2])

        // Get the value of featureIDs variable from JMeter variables
        String featureIDs = vars.get("featureIDs")

        // Check if featureIDs is not null
        if (featureIDs != null) {
            // Split the featureIDs into an array of IDs
            String[] ids = featureIDs.split(",")

            log.info(ids[0]+"AND "+ids[1]+"AND "+ids[2]+"AND "+ids[3])

            
            boolean idFound = false

            // Iterate over each ID in the array
            for (String id : ids) {
                // Trim any leading or trailing whitespace from the ID
                id = id.trim()
                // Check if the current ID matches the search string
                if (id.equals(searchString)) {
                    // If the ID is found, set idFound to true and break out of the loop
                    idFound = true
                    break
                }
            }

            // Set the assertion result based on whether the ID is found
            AssertionResult.setFailure(!idFound)
            if (!idFound) {
                AssertionResult.setFailureMessage("ID not found in var_id: $searchString")
            }
        } else {
            // Log an error if featureIDs is null
            log.error("featureIDs variable is null")
            AssertionResult.setFailure(true)
            AssertionResult.setFailureMessage("featureIDs variable is null")
        }
    } else {
        // Log an error if dependentFeatIDs array is empty
        log.error("dependentFeatIDs array is empty")
        AssertionResult.setFailure(true)
        AssertionResult.setFailureMessage("dependentFeatIDs array is empty")
    }
} else {
    // Log an error if dependentFeatID is null
    log.error("dependentFeatID variable is null")
    AssertionResult.setFailure(true)
    AssertionResult.setFailureMessage("dependentFeatID variable is null")
}

但是我在执行时遇到方法调用中的空指针错误。当我用来提取数据的 JSON 路径经过测试时，我也获取了这两个变量的值。请在这里帮助我。这是 jmeter 控制台的详细日志：

org.apache.jorphan.util.JMeterException：调用 bsh 方法时出错： eval 源文件：内联评估：

String dependentFeatID = "";  dependentFeatID = vars.get("dependentFeatID");  St . . . '' : Typed variable declaration    at org.apache.jmeter.util.BeanShellInterpreter.bshInvoke(BeanShellInterpreter.java:179) ~[ApacheJMeter_core.jar:5.6.3]    at org.apache.jmeter.util.BeanShellInterpreter.eval(BeanShellInterpreter.java:185) ~[ApacheJMeter_core.jar:5.6.3]    at org.apache.jmeter.util.BeanShellTestElement.processFileOrScript(BeanShellTestElement.java:174) ~[ApacheJMeter_core.jar:5.6.3]    at org.apache.jmeter.util.BeanShellTestElement.processFileOrScript(BeanShellTestElement.java:140) ~[ApacheJMeter_core.jar:5.6.3]    at org.apache.jmeter.assertions.BeanShellAssertion.getResult(BeanShellAssertion.java:106) [ApacheJMeter_components.jar:5.6.3]   at org.apache.jmeter.threads.JMeterThread.processAssertion(JMeterThread.java:949) [ApacheJMeter_core.jar:5.6.3]     at org.apache.jmeter.threads.JMeterThread.checkAssertions(JMeterThread.java:918) [ApacheJMeter_core.jar:5.6.3]     at org.apache.jmeter.threads.JMeterThread.executeSamplePackage(JMeterThread.java:586) [ApacheJMeter_core.jar:5.6.3]     at org.apache.jmeter.threads.JMeterThread.processSampler(JMeterThread.java:501) [ApacheJMeter_core.jar:5.6.3]     at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:268) [ApacheJMeter_core.jar:5.6.3]     at java.base/java.lang.Thread.run(Thread.java:834) [?:?] Caused by: java.lang.reflect.InvocationTargetException   at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]    at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]    at org.apache.jmeter.util.BeanShellInterpreter.bshInvoke(BeanShellInterpreter.java:162) ~[ApacheJMeter_core.jar:5.6.3]    ... 10 more Caused by: bsh.TargetError: Sourced file: inline evaluation of:
String dependentFeatID = ""; dependentFeatID = vars.get("dependentFeatID"); 英石 。 。 。 '' ：类型化变量声明位于 bsh.UtilTargetError.toEvalError(UtilTargetError.java:64) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.UtilEvalError.toEvalError(UtilEvalError.java:84) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHMethodInitation.eval(BSHMethodInitation.java:93) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:96) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:41) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHVariableDeclarator.eval(BSHVariableDeclarator.java:80) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHTypedVariableDeclaration.eval(BSHTypedVariableDeclaration.java:78) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.Interpreter.eval(Interpreter.java:659) ~[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.Interpreter.eval(Interpreter.java:750) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.Interpreter.eval(Interpreter.java:739) ~[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19]于 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(本机 方法）~[?:?] 在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 〜[?:?] 在 java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] 在 java.base/java.lang.reflect.Method.invoke(Method.java:566) 〜[?:?] 在 org.apache.jmeter.util.BeanShellInterpreter.bshInvoke(BeanShellInterpreter.java:162) ~[ApacheJMeter_core.jar:5.6.3] ... 10 个以上 造成原因： java.lang.NullPointerException：方法调用中的空指针 bsh.Name.invokeMethod(Name.java:838) ~[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHMethodInitation.eval(BSHMethodInitation.java:69) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:96) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:41) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHVariableDeclarator.eval(BSHVariableDeclarator.java:80) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.BSHTypedVariableDeclaration.eval(BSHTypedVariableDeclaration.java:78) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.Interpreter.eval(Interpreter.java:659) ~[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.Interpreter.eval(Interpreter.java:750) 〜[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19] 在 bsh.Interpreter.eval(Interpreter.java:739) ~[bsh-2.0b6.jar:2.0b6 2016-02-05 05:16:19]于 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(本机 方法）~[?:?] 在 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 〜[?:?] 在 java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] 在 java.base/java.lang.reflect.Method.invoke(Method.java:566) 〜[?:?] 在 org.apache.jmeter.util.BeanShellInterpreter.bshInvoke(BeanShellInterpreter.java:162) ~[ApacheJMeter_core.jar:5.6.3] ... 10 个以上

groovy jmeter performance-testing jmeter-plugins jmeter-5.0
1个回答
0
投票

如果您使用 Beanshell 每个语句必须以分号结尾，即代替：

String dependentFeatID = vars.get("dependentFeatID")

你需要使用

String dependentFeatID = vars.get("dependentFeatID");

等等

但是，更好的想法是切换到 Groovy 语言，这样您就不必添加分号，因为 Groovy 更宽容。此外从 JMeter 3.1 开始建议使用 Groovy 进行脚本编写

有关 JMeter 中 Groovy 脚本编写的更多信息：Apache Groovy：Groovy 的用途是什么？

最新问题
© www.soinside.com 2019 - 2024. All rights reserved.