最近在用 jmeter 做接口测试
测试某个 post 请求时 察看结果树中看不到请求中响应数据
点击该请求时明显卡顿是请求太长了么?
求大神指导

Request Headers:
X-Requested-With: XMLHttpRequest
Accept: /
Connection: keep-alive
Content-Length: 19307
Content-Type: application/json;charset=UTF-8

WARN - jmeter.protocol.http.visualizers.RequestViewHTTP: Error decoding query, maybe your request parameters should be encoded:
参数要 encode？
还有一个 ERROR
ERROR - jmeter.JMeter: Uncaught exception: java.lang.NullPointerException