Json文件响应

Question

在以下三个测试用例中获取Requests1，Get Requests2和Get Requests3。我尝试以三种不同的方式获取/ RestResponse / result节点值，但它显示相同的错误

*** Settings ***
Library  Collections
Library  OperatingSystem
Library  HttpLibrary.HTTP
Library  RequestsLibrary

*** Test Cases ***
Get Requests1
    # create a HTTP session to a server
    Create Session  countryname  http://services.groupkt.com
    # store response
    ${resp}=  Get Request  countryname  /country/get/all
    log  ${resp.content}
    # ${resp.content} display entire json response, now tring to get node value of  /RestResponse/result
    ${getResponseJson}    Get Json Value    ${resp}    /RestResponse/result
    # shows error TypeError: expected string or buffer
    log  ${getResponseJson.content}

Get Requests2
    # create a HTTP session to a server
    Create Session  countryname  http://services.groupkt.com
    # store response
    ${resp}=  Get Request  countryname  /country/get/all
    log  ${resp.content}
    # ${resp.content} display entire json response, now tring to get node value of  /RestResponse/result
    ${responseContent}=  to json  ${resp.content}
    # shows error TypeError: expected string or buffer
    ${getResponseJson}    Get Json Value    ${responseContent}    /RestResponse/result
    log  ${getResponseJson.content}


Get Requests3
    # create a HTTP session to a server
    Create Session  countryname  http://services.groupkt.com
    # store response
    ${resp}=  Get Request  countryname  /country/get/all
    log  ${resp.content}
    # ${resp.content} display entire json response,parse json
    ${data}  Parse Json    ${resp}
    # shows error TypeError: expected string or buffer
    ${getResponseJson}    Get Json Value    ${resp}    /RestResponse/result

Json文件响应

{
    "RestResponse": {
        "messages": [
            "Total [249] records found."
        ],
        "result": [
            {
                "name": "Afghanistan",
                "alpha2_code": "AF",
                "alpha3_code": "AFG"
            },
            {
                "name": "\ufffd\ufffdland Islands",
                "alpha2_code": "AX",
                "alpha3_code": "ALA"
            },
            {
                "name": "Albania",
                "alpha2_code": "AL",
                "alpha3_code": "ALB"
            },
            {
                "name": "Algeria",
                "alpha2_code": "DZ",
                "alpha3_code": "DZA"
            }
        ]
    }
}

Answer 1

您需要从JSON调用Get Json Value，而不是从请求对象调用。在您的代码中，${resp}是一个对象，其中包含JSON数据以及json解析器不知道的其他内容。

${getResponseJson}    Get Json Value    ${resp.content}    /RestResponse/result

${resp}是一个python对象。它有json数据，但它也有HTTP返回码和其他信息。您无法将其传递给任何接受JSON的内容。

${resp.content}是HTTP响应的主体。就像你在评论中写的那样，这是JSON数据。任何接受JSON数据的关键字都应该接受这个。

${resp.json}是响应转换为python对象的JSON字符串。它不再是JSON，它是一个python字典。您无法将此传递给任何需要JSON的函数。但是，您可以将其视为普通的python词典。

运行代码后，${getResponseJson}将拥有您期望的数据。它是一个unicode字符串，unicode字符串不具有content属性。

无法使用robotframework的RequestsLibrary访问json数据：TypeError：期望的字符串或缓冲区

Json文件响应

1 个答案: