java - 如何使用restful服务返回json数组

Question

此处代码返回 JSON

@RequestMapping(method = RequestMethod.GET, value="/json")
public @ResponseBody employee json(HttpServletRequest request) {
    String name = request.getParameter("name");
    employee ep = new employee();
    ep.setResult(name);
    return ep;      
}

类(class)员工:

public class employee {
    String result;
    public employee(){}

    public String getResult() {
        return result;
    }

    public void setResult(String result) {
        this.result = result;
    }
    public employee(String result) {
        this.result = result;
    }
}

当我调用 url 时: http://localhost:8080/controller/json?name=abc

我的结果是{"result":"abc"}

但我的期望是{"employee":[{"result":"abc"}]}

那么我该怎么做呢？

Answer 1

您需要具有以下类型的类才能获得预期的 json 结果:

具有结果属性的类:

class Second{

  String result;

  public Second(String r){
    this.result = r;
  }

  public String getResult() {
     return result;
  }
  public void setResult(String result) {
    this.result = result;
  }
}

包含具有属性 result 的类列表的类:

class Employee{

    List<Second> employee  = new ArrayList<Second>();

    public List<Second> getEmployee() {
        return employee;
    }
    public void setEmployee(List<Second> s) {
        this.employee = s;
    }
}

您将得到:

{"employee":[{"result":"aaa"},{"result":"bbb"},{"result":"ccc"}]}