Java GSON简单地将Json写入字符串

Question

im looking to find out how to make a SIMPLE JSON string using GSON. All of the example require writing the output to a file, I just want to put it into a string.

I want to create a JSON string like this:

{"status":"success","error":"FULL ERROR"}

Answer 1

I don't see what the issue is

public static void main(String[] args) throws Exception {
    CustomBean customBean = new CustomBean();
    customBean.error = "FULL ERROR";
    customBean.status = "success";
    Gson gson = new Gson();
    System.out.println(gson.toJson(customBean));
}

public static class CustomBean {
    private String status;
    private String error;
}

prints

{"status":"success","error":"FULL ERROR"}

I think you should go through the Gson javadoc.

If you don't want the new class, you can do

JsonObject object = new JsonObject();
object.addProperty("status", "success");
object.addProperty("error", "FULL ERROR");
System.out.println(object);

which also prints

{"status":"success","error":"FULL ERROR"}