blocks|key|1622660|text|一般的区别是，PreProcessor不会被执行，除非它的范围中有一个采样器，它将是触发+(每个采样器)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1622661|预处理器元素的定义是为了改变采样器在其范围内的设置。它总是在实际的采样器请求之前执行。|blockquote|1622662|具体的区别是JSR223+PreProcessor没有可用的SampleResult，因此您不能执行以下示例：|style|CODE|1622663|SampleResult.setStopTest(true);|code-block|syntax|javascript|1622664|SampleResult+ResponseData是根据脚本的返回值设置的。如果脚本返回null，它可以使用SampleResult.setResponseData(data)方法直接设置响应，其中数据要么是字符串，要么是字节数组。数据类型默认为"text"，但可以通过使用SampleResult.setDataType(SampleResult.BINARY)方法将其设置为二进制。
SampleResult变量允许脚本完全访问SampleResult中的所有字段和方法。例如，脚本可以访问setStopThread(boolean)和setStopTest(boolean)方法。|1622665|entityMap|0|LINK|mutability|MUTABLE|url|https://www.toolsqa.com/jmeter/pre-processor/|1|https://jmeter.apache.org/usermanual/component_reference.html#JSR223_PreProcessor^0|16|2|0|0|0|U|C|6|J|1|0|0|0|C|1I|Y|3T|19|6V|M|7I|K|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|D|3|E|5|F|7|15|8|@]|9|@]|C|$]]|$1|G|3|H|5|6|7|16|8|@$A|17|B|18|I|J]]|9|@$A|19|B|1A|1|1B]]|C|$]]|$1|K|3|L|5|M|7|1C|8|@]|9|@]|C|$N|O]]|$1|P|3|Q|5|F|7|1D|8|@$A|1E|B|1F|I|J]|$A|1G|B|1H|I|J]|$A|1I|B|1J|I|J]|$A|1K|B|1L|I|J]|$A|1M|B|1N|I|J]]|9|@]|C|$]]|$1|R|3|-4|5|6|7|1O|8|@]|9|@]|C|$]]]|S|$T|$5|U|V|W|C|$X|Y]]|Z|$5|U|V|W|C|$X|10]]]]

General difference is that PreProcessor won't be executed unless it has a sampler in its scope which it will be <a href="https://www.toolsqa.com/jmeter/pre-processor/" rel="nofollow noreferrer">triggered</a> (per sampler)

<blockquote>
 Pre-Processor element is defined to alter the settings of Samplers in their scope. It will always execute before the actual sampler request.
</blockquote>

Specific difference is that <a href="https://jmeter.apache.org/usermanual/component_reference.html#JSR223_PreProcessor" rel="nofollow noreferrer">JSR223 PreProcessor</a> doesn't have <code>SampleResult</code> available, so for example you can't execute the following example: 

<pre><code>SampleResult.setStopTest(true);
</code></pre>

<blockquote>
 The <code>SampleResult</code> ResponseData is set from the return value of the script. If the script returns null, it can set the response directly, by using the method <code>SampleResult.setResponseData(data)</code>, where data is either a String or a byte array. The data type defaults to "text", but can be set to binary by using the method <code>SampleResult.setDataType(SampleResult.BINARY)</code>.
 
 The SampleResult variable gives the script full access to all the fields and methods in the SampleResult. For example, the script has access to the methods <code>setStopThread(boolean)</code> and <code>setStopTest(boolean)</code>.
</blockquote>

blocks|key|1412011|text|JSR223采样器是一个采样器，因此它将生成一个SampleResult，它将出现在测试结果中(除非调用SampleResult.setIgnore()方法)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1412012|JSR223+PreProcessor本身无法执行，您需要根据JMeter范围规则将其连接到一个(或多个)采样器，以便在一个(或多个)采样器之前执行。PreProcessors执行时间不会反映在测试结果中(除非您使用配置为包含它的事务控制器+)|1412013|两者都可以运行任意代码(建议坚持使用Groovy)，所以哪一种使用主要取决于您的用例，如果您需要执行加载并测量时间--如果您需要选择采样器，如果您需要设置一些数据，则使用PreProcessor等等。|1412014|entityMap|0|LINK|mutability|MUTABLE|url|https://jmeter.apache.org/usermanual/component_reference.html#samplers|1|https://jmeter.apache.org/api/org/apache/jmeter/samplers/SampleResult.html|2|https://jmeter.apache.org/api/org/apache/jmeter/samplers/SampleResult.html#setIgnore--|3|https://www.blazemeter.com/blog/jmeter-scoping-rules-the-ultimate-guide/|4|https://jmeter.apache.org/usermanual/component_reference.html#Transaction_Controller|5|https://jmeter.apache.org/usermanual/best-practices.html#jsr223^0|C|3|0|O|C|1|1G|O|2|0|V|A|3|37|5|4|0|I|6|5|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]|$A|13|B|14|1|15]|$A|16|B|17|1|18]]|C|$]]|$1|D|3|E|5|6|7|19|8|@]|9|@$A|1A|B|1B|1|1C]|$A|1D|B|1E|1|1F]]|C|$]]|$1|F|3|G|5|6|7|1G|8|@]|9|@$A|1H|B|1I|1|1J]]|C|$]]|$1|H|3|-4|5|6|7|1K|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]|R|$5|K|L|M|C|$N|S]]|T|$5|K|L|M|C|$N|U]]|V|$5|K|L|M|C|$N|W]]|X|$5|K|L|M|C|$N|Y]]]]

JSR223 Sampler is a <a href="https://jmeter.apache.org/usermanual/component_reference.html#samplers" rel="nofollow noreferrer">Sampler</a>, so it will generate a <a href="https://jmeter.apache.org/api/org/apache/jmeter/samplers/SampleResult.html" rel="nofollow noreferrer">SampleResult</a> which will appear in the Test Results (unless you call <a href="https://jmeter.apache.org/api/org/apache/jmeter/samplers/SampleResult.html#setIgnore--" rel="nofollow noreferrer">SampleResult.setIgnore()</a> method)

JSR223 PreProcessor cannot be executed per se, you need to connect it to one (or many) Samplers according to <a href="https://www.blazemeter.com/blog/jmeter-scoping-rules-the-ultimate-guide/" rel="nofollow noreferrer">JMeter Scoping Rules</a> so it will be executed before one (or many) samplers. PreProcessors execution time is not reflected in the test results (unless you use a <a href="https://jmeter.apache.org/usermanual/component_reference.html#Transaction_Controller" rel="nofollow noreferrer">Transaction Controller</a> configured to include it)

Both can run an arbitrary code (it's recommended to stick to <a href="https://jmeter.apache.org/usermanual/best-practices.html#jsr223" rel="nofollow noreferrer">Groovy</a>) so which one is to use mostly depends on your use case, if you need to conduct the load and measure the time - go for the Sampler, if you need to set up some data - go for the PreProcessor, etc.

I'm new to Jmeter and vigorously learning. 

I wanted to know how JSR223 Sampler and JSR223 PreProcessor are different, can a sampler be used the same way as the preprocessor?

Difference between a JSR223 Sampler and JSR223 PreProcessor

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我是刚接触过杰米的人，我很积极地学习。我想知道JSR223采样器和JSR223 preprocessor有什么不同，一个采样器能和预处理器一样使用吗？

问JSR223采样器与JSR223 PreProcessor的区别
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