Question

我的Google Json arrylist返回0值，但不应该。

我不希望返回这个值，如：

此 - ＆＃34;总＆＃34;：0，＆＃34;记录＆＃34;：0，＆＃34;页面＆＃34;：0，＆＃34;行＆＃34;：0，

下面的代码返回此数组：

[  
  {  
    "message":"sdfghjkl",
    "total":0,
    "records":0,
    "page":0,
    "rows":0
  },
  {  
    "message":"knee problem",
    "total":0,
    "records":0,
    "page":0,
    "rows":0
  },
  {  
    "message":"hip problem",
    "total":0,
    "records":0,
    "page":0,
    "rows":0
  },
  {  
    "message":"patient message",
    "total":0,
    "records":0,
    "page":0,
    "rows":0
  },
  {  
    "message":"hip problem 2-12-2015",
    "total":0,
    "records":0,
    "page":0,
    "rows":0
  },
  {  
    "message":"hip problem 12-2015",
    "total":0,
    "records":0,
    "page":0,
    "rows":0
  }
]

代码：

＆＃13;

Gson gson = new Gson();
List<PatientDto> all_pati_message = new ArrayList<PatientDto>();
String sql = "";
try {

  sql = "SELECT message from patient_mess";

  ResultSet rs;
  rs = DatabaseConn.getConnection().createStatement().executeQuery(sql);
  while (rs.next()) {
    PatientDto dto1 = new PatientDto();
    dto1.setMessage(rs.getString(1));
    all_pati_message.add(dto1);
  }
} catch (Exception e) {
  e.printStackTrace();
}
String jsonString = gson.toJson(all_pati_message);
return jsonString;

＆＃13;

Answer 1

      GsonBuilder builder = new GsonBuilder();
        builder.excludeFieldsWithoutExposeAnnotation();
        final Gson gson = builder.create();
并在你的dto类PatientDto
中使用google json的注释，如@Expose private String message

Google Json arraylist返回0值

1 个答案: