java - Json格式不正确如何改正?

问题描述

springboot生成的Json格式不正确:自己生成的格式:[

{ 'suwd': '24', 'suyl': '24', 'jsll': '24', 'jstds': '24', 'cstds': '24', 'ph': '24', 'yl': '24', 'ylv': '1', 'ycy': '24', 'zd': '24', 'rjy': '24', 'd_id': 1, 'sentem': '20173161723', 'id': 1},{ 'suwd': '83.2', 'suyl': '62.19', 'jsll': '67.8', 'jstds': '46.9', 'cstds': '33.6', 'ph': '38.3', 'yl': '29.8', 'ylv': '23.5', 'ycy': '27.32', 'zd': '29.9', 'rjy': '28.2', 'd_id': 1, 'sentem': '20173161830', 'id': 2},{ 'suwd': '35.67', 'suyl': '34.65', 'jsll': '45.67', 'jstds': '45.89', 'cstds': '77.56', 'ph': '34.54', 'yl': '42.13', 'ylv': '13.45', 'ycy': '24.23', 'zd': '45.56', 'rjy': '45.54', 'd_id': 1, 'sentem': '2017320530', 'id': 3},{ 'suwd': '34', 'suyl': '35.65', 'jsll': '45.67', 'jstds': '57.88', 'cstds': '34.32', 'ph': '56.54', 'yl': '56.98', 'ylv': '45.76', 'ycy': '78.65', 'zd': '67.65', 'rjy': '23.56', 'd_id': 1, 'sentem': '20173201230', 'id': 4},{ 'suwd': '69.78', 'suyl': '64.45', 'jsll': '45.76', 'jstds': '34.78', 'cstds': '24.45', 'ph': '24.37', 'yl': '23.89', 'ylv': '46.38', 'ycy': '63.26', 'zd': '69.73', 'rjy': '49.69', 'd_id': 1, 'sentem': '20173201540', 'id': 5},{ 'suwd': '64.58', 'suyl': '23.43', 'jsll': '54.57', 'jstds': '45.78', 'cstds': '57.45', 'ph': '48.59', 'yl': '45.56', 'ylv': '34.78', 'ycy': '23.45', 'zd': '59.43', 'rjy': '39.78', 'd_id': 1, 'sentem': '20173201723', 'id': 6},{ 'suwd': '54.29', 'suyl': '34.89', 'jsll': '58.45', 'jstds': '49.87', 'cstds': '45.78', 'ph': '40.76', 'yl': '48.87', 'ylv': '39.98', 'ycy': '69.45', 'zd': '58.98', 'rjy': '34.48', 'd_id': 1, 'sentem': '20173202024', 'id': 7},{ 'suwd': '67.89', 'suyl': '59.70', 'jsll': '45.78', 'jstds': '48.89', 'cstds': '45.87', 'ph': '56.93', 'yl': '40.90', 'ylv': '59.89', 'ycy': '45.68', 'zd': '49.99', 'rjy': '46.90', 'd_id': 1, 'sentem': '20173202236', 'id': 8},{ 'suwd': '35.90', 'suyl': '39.90', 'jsll': '58.90', 'jstds': '74.59', 'cstds': '59.98', 'ph': '59.98', 'yl': '69.94', 'ylv': '48.89', 'ycy': '49.98', 'zd': '54.40', 'rjy': '59.93', 'd_id': 1, 'sentem': '20173202339', 'id': 9}

]

期望的格式: 'pm25':{

'key':'','show_desc':0,'pm25':{ 'curPm':'255', 'pm25':'227', 'pm10':'255', 'level':5, 'quality':'重度污染', 'des':'老年人和心脏病、肺病患者应停留在室内，停止户外活动，一般人群减少户外运动。'},

也就是要求大括号前面要有键这个是在springboot框架下的一串用于输出Json的代码@RestController@RequestMapping(value = 'admin/datas')public class DatasController {

@Autowiredprivate ISenddataService senddataService;@RequestMapping(value = '/{id}',method= RequestMethod.GET)public List<Senddata> getdatas(@PathVariable Integer id){ return senddataService.findByDeviceId(id);}

}

问题解答

你直接返回一个list当然没有key了。用一个Bean包一下就好了。

public List<A> getdatas(){...}class A{ private ? key; private ? show_desc; private B pm25;}class B{ curPm; pm25; pm10; level; quality; des;}

酱紫？