In jMeter How to get multi part body in BeanShell PreProcessor
I need to get the image data and post parameters
by using sampler.getArguments(); I am able to get the post parameters but not the image file
Please help me
You can use getHTTPFiles method of Sampler API.
sampler.getHTTPFiles() will return the file path HTTPFileArg in an array through which you can update new file at run time.
Update:
String path = sampler.getHTTPFiles()[0].getPath();
byte[] array = Files.readAllBytes(new File(path).toPath());
Something like:
File image = new File(sampler.getHTTPFiles()[0].getPath());
//do what you need with the image file
If you need extended image information take a look at ImageIO. For more Beanshell tips and tricks check out How to Use BeanShell: JMeter's Favorite Built-in Component
Related
I have a web-service which return the encoded pdf but when i try to extract the data in it by using regular expression extractor(JMeter) it does not extract. I check the value of variable, it shows null value. I googled various sites but didn't succeed. After extracting the data i will save this in to one file.
I googled and refer various sites but didn't succeed. Below here are some references:
https://dzone.com/articles/how-to-read-a-pdf-file-in-apache-jmeter
https://www.blazemeter.com/blog/what-every-performance-tester-should-know-about-extracting-data-files-jmeter/
i got nothing in my variable when i see in debug sampler.
If you want to extract text from the PDF file into a JMeter Variable the only way of doing this is using JSR223 PostProcessor and PDFBox
Download tika-app.jar and put it to JMeter Classpath
Restart JMeter to pick the .jar up
Add JSR223 PostProcessor as a child of the request which returns the PDF
Put the following code into "Script" area:
def handler = new org.apache.tika.sax.BodyContentHandler();
def metadata = new org.apache.tika.metadata.Metadata();
def inputstream = new ByteArrayInputStream(prev.getResponseData());
def context = new org.apache.tika.parser.ParseContext();
def pdfparser = new org.apache.tika.parser.pdf.PDFParser();
pdfparser.parse(inputstream, handler, metadata, context);
vars.put('pdfText', handler.toString())
That's it, you should have the text from the PDF file as ${pdfText} JMeter Variable
More information:
PDFBox Examples
Apache Groovy - Why and How You Should Use It
I have test case in my csv file. The request URL has a custom variable.
Sample URL : .../abc/$id
I need to replace this id by the id that we get in response from the previous request. I used json extractor to fetch the id from the response. Now I need to update this id in the next test case request. Fetched the Request URL from jmeter context using below code:
String path = ctx.getCurrentSampler().toString();
path.replaceAll("$id", id);
I am not able to set this updated URL in jmeter context (ctx)
You need to assign new path value to path variable
You need to set sampler path to the new value using sampler.setPath() method
So you need to amend your code like:
String path = ctx.getCurrentSampler().toString();
path = path.replaceAll("$id", id);
sampler.setPath(path);
Demo:
Also consider switching to JSR223 PreProcessor and Groovy language as Groovy performance is much higher, it better supports new Java features and provides some extra "syntax sugar" on top. See Groovy is the New Black article for details.
Try to avoid the pre / post processors if possible.
Your requirement is very simple and straight forward.
Directly use this in the path - assuming id is the name of variable which has the value.
/abc/${id}
I have to give dynamic values to url which takes number of users and their age , which can be selected though web page. but I want to give it in Jmeter using BeanShell PostProcessor.
Help me in this,since I'm new to Jmeter.
This is the path:
/destinations/packages?airports%5B%5D=LGW&units%5B%5D=000577%3ADESTINATION&when=29-05-2016&until=&flexibility=true&flexibleDays=3&noOfAdults=2&noOfSeniors=0&noOfChildren=1&childrenAge=3&duration=7114&first=0&searchType=search&searchRequestType=ins&sp=true&multiSelect=true
from what I've got looks like you can use CSV Data Set Config.
Create .txt file with the data you want to feed your test with;
Place the above .txt file to the folder where your .jmx file lies;
In your Test plan: Under your request sampler - place CSV Data set Config;
Then if you need to use your dynamic values within one threadgroup => refer these data as ${quanity}, ${age} in you url.
If you need to pass these values across the threadgroups => add BeanShell Assertion
Then (in the other Tread group) refer those as ${__property(_quantity)},${__property(_age)}.
Hope, it helps.
First of all you need Beanshell PreProcessor, not Beanshell PostProcessor.
All this parameters are basically name/value pairs which can be defined via HTTPSamplerBase class. HTTPSamplerBase class instance is available to Beanshell PreProcessor as sampler pre-defined variable so if you add the following code into the Beanshell PreProcessor "Script" area
sampler.addEncodedArgument("airports[]","LGW");
sampler.addEncodedArgument("units[]","000577:DESTINATION");
sampler.addEncodedArgument("when","29-05-2016");
sampler.addEncodedArgument("until","");
sampler.addEncodedArgument("flexibility", "true");
sampler.addEncodedArgument("flexibleDays","3");
sampler.addEncodedArgument("noOfAdults","2");
//etc
Your HTTP request will be populated with the values, you set via Beanshell.
JMeter Variables can be accessed via vars shorthand which stands for JMeterVariables class instance.
String airport = vars.get("airport");
sampler.addEncodedArgument("airports[]", airport);
//etc
See How to Use BeanShell: JMeter's Favorite Built-in Component article for comprehensive information on how to use Beanshell Test Elements in Jmeter.
Remember that it is recommended to avoid scripting where possible so if there is another way of implementing your task - go for it.
I am reading the domain url from the CSVdatafile before hitting I need to replace the environment with some String
How I can achieve in Jmeter
data file entries
Tried following by adding the BeanShellPreprocesser
print("------Replcing the environment name------");
var str =new Stirng[]{${siteUrl}};
var res = str.replace("frep", ${env});
SampleResult.setResponseData(res);
still it is not working.
I need to read each entry from the Datafile and replace the "frep" with "abc" and then i need to hit the url
How I can achieve this in Jmeter?
According to your scenario Beanshell code should look like:
String siteUrl = vars.get("siteUrl");
siteUrl = siteUrl.replaceAll("frep", vars.get("env"));
vars.put("siteUrl", siteUrl);
Beanshell is more like Java, not JavaScript. You can use __javaScript() function to perform the substitution if you're more comfortable with it.
See How to Use BeanShell: JMeter's Favorite Built-in Component guide for more detailed explanation of Beanshell scripting in JMeter.
Also be aware that
How can i Save parameter or any word from the response of the page to external file (txt ot csv)ang get this parameter from the file to enter another page ?
In fact I want to be able to change the parameter dynamically via file.
Thanks.
To save the whole response thing into a file:
Add a Beanshell PostProcessor as a child of the sampler, whose data you need to save.
Add the following code to the PostProcessor's "Script" area
import org.apache.commons.io.FileUtils;
File file = new File("/path/to/your/file.txt");
FileUtils.writeByteArrayToFile(file, data);
To read file contents in JMeter:
Just use __FileToString function wherever file's content is required as:
${__FileToString(/path/to/your/file.txt,,)}
For more information on Beanshell bit refer to How to use BeanShell: JMeter's favorite built-in component guide.
For high loads it will be better to replace Beanshell PostProcessor with JSR223 PostProcessor and choose "groovy" as the language (you'll need groovy-all.jar somewhere in JMeter's classpath)