springboot controller传参，对象映射

　　Post请求，对象映射时,在参数 加 @RequestBody： 传入对象内字段的json才能映射

{
"legendData": [
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],
"gridList": {
"grid": [

[
116.59021090817286,
39.91686875118087
],
[
116.59020940582442,
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],
[
116.58727587667578,
39.919119023489884
],
[
116.58727737835683,
39.91686553920044
]

],
"index": "1",
"gridid": 11025129,
"value": 927
}
}