java.io.FileNotFoundException with Jmeter - Using beanshell pre processor

Question

I'm having issue with Jmeter using BeanShell PreProcessor to encode input file then include the encoded file in "Send file with request".

Jmeter Setup

---

• HTTP Request (Send file with the request - ${file1})
  • BeanShell PreProcessor

BeanShell PreProcessor

import org.apache.commons.io.FileUtils;
import org.apache.commons.codec.binary.Base64;
String file1 = FileUtils.readFileToString(new File("D:/File/test.txt"),"UTF-8");
vars.put("file1",new String(Base64.encodeBase64(file.getBytes("UTF-8"))));

Error Message

java.io.FileNotFoundException: ${file1} (The system cannot find the file specified)

Answer 1

If you're trying to do the following:

1. Read file into a string
2. Encode content to Base64
3. Save encoded content to another file
4. Save new file path into a JMeter Variable

your Beanshell code should look like:

String file1 = FileUtils.readFileToString(new File("D:/File/test.txt"), "UTF-8");
FileUtils.write(new File("D:/File/testbase64.txt"),new String(Base64.encodeBase64(file1.getBytes("UTF-8"))));
vars.put("file1","D:/File/testbase64.txt");

Your code snippet was

1. Trying to put encoded file content into file JMeter variable
2. Having a typo in the last line file.getBytes() should be changed to file1.getBytes()

See How to use BeanShell: JMeter's favorite built-in component guide for more information on bsh scripting in Apache JMeter.