android解析json

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对两种形式的json数组进行解析：

1.形式一如：[{"id":"4","latitude":"39.9192","longitude":"116.327","description":"","icon":"","type":"0","distance":"12232406"},{"id":"1","latitude":"39.9392","longitude":"116.357","description":"","icon":"","type":"3","distance":"12234172"}]

服务器端我是用thinkPHP写的：

$result = M("数据库表名")->query("SQL语句");

echo json_encode($result);

android端解析代码如下：

public static void parseJson(String result){
try {

JSONArray jsonArray=new JSONArray(result);
for(int i=0;i<jsonArray.length();i++){
JSONObject jsonObject=new JSONObject();
jsonObject=jsonArray.getJSONObject(i);

String latitude=jsonObject.optString("latitude");
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

2.形式二如：

{"posts":[{"post{"id":"4","latitude":"39.9192","longitude":"116.327","description":"","icon":"","type":"0","distance":"12232406"}},

{"post":{"id":"25","latitude":"39.66","longitude":"116.46","description":"","icon":"","type":"1","distance":"12252102"}}]}

服务器端代码如下：

$result = M("数据库表名")->query("SQL语句");
  $posts = array();
foreach ($result as $key => $value) {
  $posts[] = array('post'=>$value);
}
  echo json_encode(array('posts'=>$posts));

android端解析json代码如下：

public static List<Map<String,String>> resolveData(String jsonStr)
{
ArrayList<Map<String,String>> list=new ArrayList<Map<String,String>>();
JSONObject json;
try {if(jsonStr!=null){
json = new JSONObject(jsonStr);
JSONArray jArray = json.getJSONArray("posts");
for (int i = 0; i < jArray.length(); i++) {
   JSONObject e = jArray.getJSONObject(i);
String s = e.getString("post");
JSONObject jObject = new JSONObject(s);
   Map<String,String> map=new HashMap<String,String>();

map.put("latitude",jObject.optString("latitude"));

.....
list.add(map);
}
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();

}
catch (NumberFormatException e) {
// TODO: handle exception
e.printStackTrace();

}
catch(Exception e)
{
return null;
}
return list;
}

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