json数据绑定到java类

以下是rest客户机上json格式的响应主体

[
  {
    "total": 4
  },
  {
    "id": "93985",
    "v": "HDB Hougang",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "1",
    "pid": "3522",
    "aid": "84527",
    "lid": "93985",
    "cat": "99",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "1",
    "ad": "0",
    "tbiz": "1",
    "hsp": 1
  },
  {
    "id": "250286",
    "v": "SCDF Bomb Shelter @ 540 Hougang Avenue 8",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "1",
    "pid": "49896",
    "aid": "84527",
    "lid": "250286",
    "cat": "1073",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "0",
    "ad": "0",
    "tbiz": "1",
    "hsp": 1
  },
  {
    "id": "386730",
    "v": "Everhealth Medical Centre Pte Ltd",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "2",
    "pid": "3522",
    "aid": "84527",
    "lid": "93985",
    "cat": "508",
    "cid": "189715",
    "b": "1",
    "tel": "63850815",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "0",
    "ad": "0",
    "pcn": "HDB Hougang",
    "hsp": 1
  },
  {
    "id": "370197",
    "v": "Glory Centre Community Services Association",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "2",
    "pid": "3522",
    "aid": "84527",
    "lid": "93985",
    "cat": "133",
    "cid": "179210",
    "b": "1",
    "tel": "63863039",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "0",
    "ad": "0",
    "pcn": "HDB Hougang",
    "hsp": 1
  }
]

对应的Java类

public class StreetDirectoryDetail implements Serializable {


    private int total;
    List<StreetDirectoryInfo> info =new ArrayList<StreetDirectoryInfo>();

    public int getTotal() {
        return total;
    }

    public void setTotal(int total) {
        this.total = total;
    }   

    public class StreetDirectoryInfo{
        private String id;
        private String v;
        private String a;
        private String t;
        private String pid;
        private String lid;
        private String cat;
        private double x;
        private double y;
        private String ad;
        private String bld;
        private String tbiz;
        private String hsp;

        public String getId() {
            return id;
        }
        public void setId(String id) {
            this.id = id;
        }
        //...the other getter and setter.//

    }

}

公共类StreetDirectoryDetail实现可序列化{
私人整数合计；
列表信息=新的ArrayList（）；
公共int getTotal（）{
返回总数；
}
公共无效集合总计（整数总计）{
这个.总计=总计；
}   
公共类StreetDirectoryInfo{
私有字符串id；
私有字符串v；
私人字符串a；
私有字符串t；
私有字符串pid；
私用线盖；
私人串猫；
私人双x；
私人双y；
私人字符串广告；
私人字符串bld；
私有字符串tbiz；
私有字符串hsp；
公共字符串getId（）{
返回id；
}
公共无效集合id（字符串id）{
this.id=id；
}
//…另一个接球手和二传手//
}
}

打电话

String url="<some valid url>";
restTemplate.getMessageConverters().add(
                new MappingJackson2HttpMessageConverter());
StreetDirectoryDetail result =     restTemplate.getForObject(url,StreetDirectoryDetail.class);

stringurl=”“；
restTemplate.getMessageConverters（）.add(
新映射Jackson2HttpMessageConverter（））；
StreetDirectoryDetail结果=restTemplate.getForObject（url，StreetDirectoryDetail.class）；

我使用spring的restTemplate将json转换为java等效类。 我尝试使用上面的java类，没有得到“result”，而是直接转到response.close（），没有抛出错误。我怀疑可能是因为StreetDirectoryDetail类的结构不适合从json到java类的数据绑定

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希望得到建议，谢谢

您的json字符串和类似乎不匹配

您的json字符串

[
  {
    "total": 4
  },
  {
    "id": "93985",
    "v": "HDB Hougang",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "1",
    "pid": "3522",
    "aid": "84527",
    "lid": "93985",
    "cat": "99",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "1",
    "ad": "0",
    "tbiz": "1",
    "hsp": 1
  },
  {
    "id": "250286",
    "v": "SCDF Bomb Shelter @ 540 Hougang Avenue 8",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "1",
    "pid": "49896",
    "aid": "84527",
    "lid": "250286",
    "cat": "1073",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "0",
    "ad": "0",
    "tbiz": "1",
    "hsp": 1
  },
  {
    "id": "386730",
    "v": "Everhealth Medical Centre Pte Ltd",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "2",
    "pid": "3522",
    "aid": "84527",
    "lid": "93985",
    "cat": "508",
    "cid": "189715",
    "b": "1",
    "tel": "63850815",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "0",
    "ad": "0",
    "pcn": "HDB Hougang",
    "hsp": 1
  },
  {
    "id": "370197",
    "v": "Glory Centre Community Services Association",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "2",
    "pid": "3522",
    "aid": "84527",
    "lid": "93985",
    "cat": "133",
    "cid": "179210",
    "b": "1",
    "tel": "63863039",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "0",
    "ad": "0",
    "pcn": "HDB Hougang",
    "hsp": 1
  }
]

在你们班应该是这样的

[
  {
    "total": 4,
     "info" :
  [
   {
    "id": "93985",
    "v": "HDB Hougang",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "1",
    "pid": "3522",
    "aid": "84527",
    "lid": "93985",
    "cat": "99",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "1",
    "ad": "0",
    "tbiz": "1",
    "hsp": 1
  },
  {
    "id": "250286",
    "v": "SCDF Bomb Shelter @ 540 Hougang Avenue 8",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "1",
    "pid": "49896",
    "aid": "84527",
    "lid": "250286",
    "cat": "1073",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "0",
    "ad": "0",
    "tbiz": "1",
    "hsp": 1
  },
  {
    "id": "386730",
    "v": "Everhealth Medical Centre Pte Ltd",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "2",
    "pid": "3522",
    "aid": "84527",
    "lid": "93985",
    "cat": "508",
    "cid": "189715",
    "b": "1",
    "tel": "63850815",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "0",
    "ad": "0",
    "pcn": "HDB Hougang",
    "hsp": 1
  },
  {
    "id": "370197",
    "v": "Glory Centre Community Services Association",
    "a": "540 Hougang Avenue 8. (S)530540",
    "t": "2",
    "pid": "3522",
    "aid": "84527",
    "lid": "93985",
    "cat": "133",
    "cid": "179210",
    "b": "1",
    "tel": "63863039",
    "x": "103.891085",
    "y": "1.377791",
    "bld": "0",
    "ad": "0",
    "pcn": "HDB Hougang",
    "hsp": 1
   }
  ]
 }
]

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您拥有的JSON是一个JSON数组。您正试图反序列化为一个Java对象，该对象对应于一个JSON对象。Ker p pag，您的示例类和JSON并没有任何区别。