在JMeter HTTP POST中参数化POST正文

问题描述

我正在使用Apache JMeter针对我们开发的应用程序针对RESTFUL API运行一些性能测试.我有一个端点"api/create/empListJob"，它基本上在MongoDB中添加了一个或多个员工记录. POST调用的有效负载如下所示:

I am using Apache JMeter to run a few performance tests against RESTFUL API for an application that we have developed. I have an end point "api/create/empListJob", which basically adds one or more employee records in the MongoDB. The payload for the POST call looks like this:

{
        "employeeList": [
            {
                "first_name": "josh",
                "last_name": "don",
                "age": "25",
                "address": {
                    "street1": "xyz",
                    "street2": "apt-10",
                    "city" : "def",
                    "state" : "CA",
                    "zip" : "95055"
                },
                "deptType": {
                    "deptID": "1",
                    "deptName": "R&D"
                }
            },
            {
                "first_name": "mary",
                "last_name": "jane",
                "age": "22",
                "address": {
                    "street1": "zzz",
                    "street2": "apt-15",
                    "city" : "yyy",
                    "state" : "CA",
                    "zip" : "95054"
                },
                "deptType": {
                    "deptID": "2",
                    "deptName": "HR"
                }
            }
        ]
    }

如您所见，有效负载采用了一组员工数据，并且应该至少有一个员工记录.我有一个要求，我希望JMeter线程组具有10个线程，并且这些线程中的每个线程都应进行并发POST到"api/create/empListJob"，以便该主体具有10个唯一的员工记录，从而创建总共100条记录.我可以对有效负载进行参数化的最佳方法是什么?

As you can see, the payload takes a list of employee data, and it should have atleast one employee record. I have a requirement in which i want JMeter thread group to have 10 threads and each of these threads should make a concurrent POST to "api/create/empListJob" such that the body has 10 unique employee records, thus creating a total of 100 records. What is the best way that i could parameterize the payload?

推荐答案

看看 JMeter函数，例如:

• __threadNum()-返回当前线程数(虚拟用户) )
• __Random()-返回给定范围内的随机数
• __RandomString()-从指定的输入字符中返回随机字符串
• __UUID()-返回随机 GUID结构

• __threadNum() - returns the number of current thread (virtual user)
• __Random() - returns a random number in a given range
• __RandomString() - returns a random string from specified input characters
• __UUID() - returns random GUID structure

例如，如果您将JSON有效负载更改为:

So for example if you change your JSON payload to look like:

"employeeList": [
  {
      "first_name": "josh-${__threadNum}",
      "last_name": "don-${__threadNum}",
      "age": "25",
      "address": {
          "street1": "xyz",
          "street2": "apt-10",
          "city" : "def",
          "state" : "CA",
          "zip" : "95055"
      },
      "deptType": {
          "deptID": "1",
          "deptName": "R&D"
      }
  },
  {
      "first_name": "mary-${__threadNum}",
      "last_name": "jane-${__threadNum}",
      "age": "22",
      "address": {
          "street1": "zzz",
          "street2": "apt-15",
          "city" : "yyy",
          "state" : "CA",
          "zip" : "95054"
      },
      "deptType": {
          "deptID": "2",
          "deptName": "HR"
      }
  }
]
}

JMeter将创建:

JMeter will create:

- `josh-1` for 1st virtual user
- `josh-2` for 2nd virtual usre
- etc.

请参阅 Apache JMeter函数-简介来熟悉JMeter函数概念.

See Apache JMeter Functions - An Introduction to get familiarized with JMeter Functions concept.

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