JMeter socket connection sends data

Jmeter-Socket Connect to send data

This article introduces the following through Jmeter establish Socket Connect , Send to server 16 Hexadecimal data .

To configure TCP Connect

One 、 establish TCP Sampler configuration

Two 、 Configuration instructions
TCPClient classname：TCP There are three ways to enable sending ：

• TCPClientImpl： Text data , Default to this
• BinaryTCPClientImpl： transmission 16 Hexadecimal data , Specify package terminator . such 16 The hexadecimal file will pass Jmeter GUI To convert .
• LengthPrefixedBinaryTCPClientImpl： Front in packet 2 Bytes are the data length . Can be found in bin/jmeter.properties In profile tcp.binarylength.prefix.length Set up .

Target Server：TCP Fill in the server address in the sampler 、 port .
Connect： Set connection timeout .
Response： Set response timeout .
Re-use connection： Indicates that the connection is repeatedly used to send requests .
Close connection： It means that after sending this piece of data each time , Close the connection .
End of line(EOL) byte value： Terminator .

• Intercept the last byte according to the server return value , Notice if it is 16 Base number , It should be two characters
  such as , In my project, the return value is changed to 16 The base case is as follows ：
  7e80010005013819415186010103e7020000d47e
  So the last byte （8 position ） Should be 7e Conversion for 10 After the base number is 126, So in eol Set to 126.
  Be careful ： The terminator is a byte ,16 The hexadecimal number is greater than 7F(127) after , The EOL The value is negative. . such as ： If the last byte returned by the server is 80, Change from single byte to decimal -128,EOL The value at should be filled in -128,.

If TCP The request requires a user name / password , You can fill in the login configuration .

establish TCP Connect

One 、 establish TCP Sampler
TCP The sampler has been configured , There is no need to fill in IP、PORT Equal parameter .

• Be careful ： If you need to use the same connection to send data repeatedly , Every TCP Sampler's Re-use connection All need to be checked .
  
  Establish a channel 1：
  
  Two 、 Send signature data
  Set to keep long connection , Set response timeout 2000ms.
  
  send out 16 Hexadecimal text content , The response data terminator needs to be set , According to the response data, the last byte is converted to 10 Hexadecimal data .