使用jmeter进行接口请求时，传递json参数，查看结果树中的请求数据中的参数值和参数名都显示在parameter name中，而且Content–type显示text/ plain，怎么解决啊？

消息体数据中的参数
{
"gid": 1407,
"option_score": {
"moist_score": 3,
"color_score": 3,
"lasting_score": 3,
"own_score": 3
},
"question": [{
"evaluation_question_id": "17",
"evaluation_tags_id": [
1969, 9472, 9473, 9474, 1974
]
},
{
"evaluation_question_id": "18",
"evaluation_tags_id": [
9475
]
},
{
"slide_score": "7",
"evaluation_question_id": "5",
"evaluation_tags_id": [
1976
]
},
{
"evaluation_question_id": "6",
"evaluation_tags_id": [
9461
]
},
{
"evaluation_question_id": "7",
"evaluation_tags_id": [
9467
]
},
{
"slide_score": "7",
"evaluation_question_id": "8",
"evaluation_tags_id": [
1972
]
},
{
"evaluation_question_id": "9",
"evaluation_tags_id": [
9470
]
},
{
"evaluation_question_id": "10",
"evaluation_tags_id": [
9481
]
},
{
"slide_score": "7",
"evaluation_question_id": "11",
"evaluation_tags_id": [
9484
]
},
{
"evaluation_question_id": "12",
"evaluation_tags_id": [
9486
]
},
{
"slide_score": "7",
"evaluation_question_id": "13",
"evaluation_tags_id": [
1971
]
},
{
"evaluation_question_id": "14",
"evaluation_tags_id": [
9491
]
},
{
"evaluation_question_id": "15",
"evaluation_tags_id": [
9495
]
},
{
"evaluation_question_id": "16",
"evaluation_tags_id": [
9498
]
}
]
}

说你内容类型有问题，去查下有没有空格或者少了什么