使用 beanshell 在 jmeter 中获取 json 响应

Question

In my jmeter response i have javascript and json as a mix response from that i have to fetch a JSON array which is items Here is part of a huge response which i am getting

DE.APP.task.TaskGrid.getAssignmentData = function () {
                return {"items":[]};
            };

            DE.APP.task.TaskGrid.getResourceData = function () {
                return {"items":[{"STANDARDRATEFORMAT":"0.00","ASSIGNED_HRS":0,"RESOURCE_NAME":"#Buddhika ","COST":"0.00","PERCENTASSIGNED":"100.00","EMAIL":"Buddhika75@mspblank.com","AVAILABLEFROM":"10-May-2011","ALLOCATED_HRS":"1872.00","RESOURCE_ID":36197221,"AVAILABLETO":"31-Mar-2012","calendar":{"exceptions":{},"weekDayHours"

In this response i have to fetch the json array which is in getResourceData() and not any other items. How can we do this with beanshell assrtion?

Answer 1

您可以使用 Regular Expressions. As action is need to perform on the response of particular request[sampler], you should use Post-Processors as child of that particular request. So basically use Regular Expression Extractor 提取响应的任何部分。

假设你的反应是这样的---

我已经完成了 JSON 对象的数组并添加了一些可能存在的提示。这是我所做的假设。请检查您的实际回复。

DE.APP.task.TaskGrid.getAssignmentData = function () {
            return {"items":[]};
        };

        DE.APP.task.TaskGrid.getResourceData = function () {
            return {"items":[{"STANDARDRATEFORMAT":"0.00","ASSIGNED_HRS":0,"RESOURCE_NAME":"#Buddhika ","COST":"0.00","PERCENTASSIGNED":"100.00","EMAIL":"Buddhika75@mspblank.com","AVAILABLEFROM":"10-May-2011","ALLOCATED_HRS":"1872.00","RESOURCE_ID":36197221,"AVAILABLETO":"31-Mar-2012","calendar":{"exceptions":{},"weekDayHours":{}}}]}
            
            AnotherBlockthatYouCanIDenity

所以你可以拥有 Post-这样的处理器-

请注意，此 RE 可能不正确，因为我不确定您收到的回复。请检查您的回复。您也可以在查看结果树侦听器中测试您的正则表达式。

Answer 2

您可以使用 apache StringUtils 使用左边界和右边界来切割字符串。您的左边界很清楚 "return {" 但我不确定您的右边界（跟在您的 JSON 负载后面的字符串）。在下面的示例中，我使用 ]} 作为分隔符来削减 JSON 有效负载。使用 prev.getResponseDataAsString() 将响应负载作为字符串拉取。

import org.apache.commons.lang3.StringUtils;
import net.minidev.json.parser.JSONParser;
import net.minidev.json.JSONObject;
import net.minidev.json.JSONArray;

String sInputString =  "return {\"items\":[{\"STANDARDRATEFORMAT\":\"0.00\",\"ASSIGNED_HRS\":0,\"RESOURCE_NAME\":\"#Buddhika \",\"COST\":\"0.00\",\"PERCENTASSIGNED\":\"100.00\",\"EMAIL\":\"Buddhika75@mspblank.com\",\"AVAILABLEFROM\":\"10-May-2011\",\"ALLOCATED_HRS\":\"1872.00\",\"RESOURCE_ID\":36197221,\"AVAILABLETO\":\"31-Mar-2012\",\"calendar\":{\"exceptions\":{},\"weekDayHours\":{}}}]}";

//String sInputString = prev.getResponseDataAsString();

try {
     // Use StringUtils to cut the string between the two
    String sCutString = StringUtils.substringBetween(sInputString, "return {\"items", "]}");
    String sFinalString = "{\"items" + sCutString + "]}";
    log.info("sFinalString=" + sFinalString);

    // Use JSONParser to parse the JSON
    JSONParser parser = new JSONParser(JSONParser.ACCEPT_NON_QUOTE|JSONParser.ACCEPT_SIMPLE_QUOTE); 
    JSONObject rootObject = (JSONObject) parser.parse(sFinalString);
    //JSONObject rootObject = (JSONObject) parser.parse(prev.getResponseDataAsString());

    JSONArray jResourceArray = (JSONArray) rootObject.get("items");

    for (int i=0; i < jResourceArray.size(); i++) {
        log.info(jResourceArray.get(i).toString());
        // You can access individual elements using this
        log.info("RESOURCE_ID=" + jResourceArray.get(i).get("RESOURCE_ID"));
    }


}
catch ( Exception ex) {
    log.info("Exception.." + ex);
}

使用 beanshell 在 jmeter 中获取 json 响应

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