[英]How to retrieve the result as JSON Arrray format in REST Response
我正在尝试从数据库中检索数据,并在“ Response”中将其作为JSON数组返回。 但是现在我在下面的浏览器中得到结果,这不是正确的JSON数组格式。 我如何以JSON数组形式接收数据?
{"{\n \"id\": 14,\n \"name\": \"Test Doom Post\",\n \"email\": \"test@test1.com\...
JDK 1.7球衣(jaxrs-ri-2.25.1)Gson
//下面是我的Get方法:
@Path("/register")
public class JSONService {
@GET
@Path("/get")
@Produces("application/json")
@Consumes("application/json")
public Response getRegisterInJSON() {
JSONObject requestedJSON = new JSONObject();
try {
Class.forName("com.mysql.jdbc.Driver");
SoccerUtils dbConnection = new SoccerUtils();
Connection conn = dbConnection.getWeekendDBConnection();
PreparedStatement stmt = conn.prepareStatement("SELECT ID, FIRST_NAME, EMAIL FROM mycoolmap.weekendsoccer_login");
ResultSet rs = stmt.executeQuery();
while(rs.next())
{
RegisterPlayer playerObj = new RegisterPlayer();
playerObj.setId(rs.getInt("ID"));
playerObj.setName(rs.getString("FIRST_NAME"));
playerObj.setEmail(rs.getString("EMAIL"));
Gson gson = new GsonBuilder().setPrettyPrinting().create();
String json1 = gson.toJson(playerObj);
requestedJSON.put(json1, json1);
System.out.println(requestedJSON);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
}
return Response.status(Status.OK).entity(requestedJSON.toString()).build();
}
//注册Player POJO类:
@XmlRootElement
public class RegisterPlayer implements Serializable {
private int id;
private String name;
private String email;
public RegisterPlayer() {
}
public RegisterPlayer(int id, String name, String email)
{
super();
this.id =id;
this.name = name;
this.email = email;
}
public int getId()
{
return id;
}
public void setId(int id)
{
this.id =id;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public String getEmail()
{
return email;
}
public void setEmail(String email)
{
this.email = email;
}
@Override
public String toString() {
return "RegisterPlayer[id=" + id +", name=" + name +", email="+ email +"]";
}
}
正如罗曼在上述评论中所建议的那样,我已经创建了一个列表,添加了对象并返回了列表。 它按预期工作。
/Created a 'registerPlayerList' List
List<RegisterPlayer> registerPlayerList = new ArrayList<RegisterPlayer>();
// Intialiaze the RegisterPlayer class
RegisterPlayer playerObj = new RegisterPlayer();
//set all the values into the object
playerObj.setId(rs.getInt("ID"));
playerObj.setName(rs.getString("FIRST_NAME"));
playerObj.setEmail(rs.getString("EMAIL"));
......
//add the playerObj to the created registerPlayerList
registerPlayerList.add(playerObj);
// return the list
return registerPlayerList ;
问题是您正在将json打印到字符串( json1
变量),但是正在将该字符串添加到JSONObject中。 当将字符串添加到JSONObject时,该字符串将被转义-这是一个String json对象。
如果改为打印json1
(并将其设置为实体),它应该可以工作。
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