Android - 将PHP json_encode解析为Java

Question

String json_string_from_server = "{\"test1\":\"test1_value\",\"test2\":\"test2_value\"}";

如何循环JSON并打印所有键和值。

Answer 1

假设jsonString是一个变量，你从php中获取所有json。您需要按如下方式迭代数组：

<div id="div1" ondrop="drop(event)" ondragover="allowDrop(event)" class="relative" style="position:relative">

  <div id="TextBoxesGroup">
    <div id="TextBoxDiv1">
      <label id="label1">Text Here</label>
      <input id="textbox1" class="clickedit" type="text" class="draggable" placeholder="Text Here" />
      <div class="clearfix" id="hey"></div>
    </div>
  </div>

</div>
<button id="save">Save</button>

Answer 2

您可以简单地解析Json字符串，如下所示 -

String json_string_from_server = "{\"test1\":\"test1_value\",\"test2\":\"test2_value\"}";

JSONObject jObj = new JSONObject(json_string_from_server);
String val_Test1 = jObj.getString("test1");
String val_Test2 = jObj.getString("test2");

案例2：

String json_string_from_server = "{ 
  "result" : [
    {\"test1\":\"test1_values_baru\", \"test2\":\"test2_values\"}, 
    {\"test1\":\"test‌​1_values\", \"test2\":\"test2_values\"}
  ]
}";

JSONObject jObj = new JSONObject(json_string_from_server);
JSONArray jResultArray = jObj.getJSONArray("result");
for(int i=0; i<jResultArray.length(); i++){
    JSONObject jResultObj = jResultArray.getJSONObject(i);
    String val_Test1 = jResultObj.getString("test1");
    String val_Test2 = jResultObj.getString("test2");
}

Answer 3

String json_string="[{\"test1\":\"test1_values_baru\",\"test2\":\"test2_values\"},{\"test1\":\"test‌​1_values\",\"test2\":\"test2_values\"}]";

JSONArray jResultArray = new JSONArray(json_string);
for(int i=0; i<jResultArray.length(); i++){
       JSONObject jResultObj = jResultArray.getJSONObject(i);
       String val_Test1 = jResultObj.getString("test1");
       String val_Test2 = jResultObj.getString("test2");
}