Question

我正在尝试在Android中使用带有JSON的PHP Web服务

我从服务器获得了响应数据

string(170) "["14","Samsung","1","15","Nokia","1","16","Sony Ericson","1","18","LG","1","19","Iphone","1","21","HTC","1","22","Motorola","1","23","Micromax","1","41","BlackBerry","1"]"

我应如何解析它以在ListView上显示它。我熟悉如何通过创建自定义适配器在ListView上显示数据但我无法解析此输出。请帮助

我按照本教程访问PHP Web服务

http://www.codeproject.com/Articles/267023/Send-and-receive-json-between-android-and-php
给我一些参考。任何帮助表示赞赏谢谢......

Alos我想知道在php端生成的JSONArray的正确格式是什么？

Answer 1

首先，它不是一个有效的Json格式，Json必须有label并且对应value ex。 “label”：“value”，但您仍然可以手动解析此字符串像这样

String yourString= "["14","Samsung","1","15","Nokia","1","16","Sony Ericson","1","18","LG","1","19","Iphone","1","21","HTC","1","22","Motorola","1","23","Micromax","1","41","BlackBerry","1"]";

yourString= yourString.subString(1, yourString.length()-1);

String[] arrayValue= yourString.split(",");

现在你有 arrayValue [0] =“14”arrayValue [1] =“三星”等等。

Answer 2

看起来像'stupid-json'数组。基本上没有问题，因为你将它看作字符串列表。通常我会建议使用一些JSON类，但在这个特殊的简单案例中就足够了：

String jsonString = "["14","Samsung","1","15","Nokia","1","16","Sony Ericson","1","18","LG","1","19","Iphone","1","21","HTC","1","22","Motorola","1","23","Micromax","1","41","BlackBerry","1"]"
jsonString = jsonString.subString(1, substring.length() -1);
String[] singleValues = jsonString.split(",");

这应该导致这个

new String[]{"14","Samsung","1",....}

并且您可以在自定义ListAdapter中传递该String数组（但默认情况下也应该没问题）

Answer 3

这是有效但奇怪的json响应。解析这个json时，你将获得27个值。 14，三星，1,15，诺基亚...... 但似乎每3个项目都是一个对象 “14，三星，1” “15，诺基亚，1”。那个json没有反映出这一点。

使用这样的在线json解析器，您可以看到结果：

http://jsonviewer.stack.hu/

你可以像这样解析json：

List<String> list = new ArrayList<String>();
int counter = 0;
boolean first = true;
String json = "[\"14\",\"Samsung\",\"1\",\"15\",\"Nokia\",\"1\",\"16\",\"Sony Ericson\",\"1\",\"18\",\"LG\",\"1\",\"19\",\"Iphone\",\"1\",\"21\",\"HTC\",\"1\",\"22\",\"Motorola\",\"1\",\"23\",\"Micromax\",\"1\",\"41\",\"BlackBerry\",\"1\"]";
JSONArray getJSONArray;
try {
  getJSONArray = new JSONArray(json);

  for (int i = 0; i < getJSONArray.length(); i++) {

    Log.d("", getJSONArray.getString(i) + "-" + i % 1 + "-" + i % 2);

    if ((first == true && counter == 1) || (first == false && counter == 2)) {
      list.add(getJSONArray.getString(i));
      counter = 0;
      first = false;
    }
    else {
      counter += 1;
    }
  }
}
catch (JSONException e) {
  e.printStackTrace();
}

记录您的数组以查看您的内容：

for (String item : list) {
  Log.d("list", item);
}

<强>结果：

D/list    ( 1669): Samsung
D/list    ( 1669): Nokia
D/list    ( 1669): Sony Ericson
D/list    ( 1669): LG
D/list    ( 1669): Iphone
D/list    ( 1669): HTC
D/list    ( 1669): Motorola
D/list    ( 1669): Micromax
D/list    ( 1669): BlackBerry

对于服务器站点：

通常json必须是这样的..

[
    {
        id: "14",
        brand: "Samsung",
        status: "1"
    },
    {
        id: "15",
        brand: "Nokia",
        status: "1"
    },
    {
        id: "16",
        brand: "Sony Ericson",
        status: "1"
    }
]

在PHP中解析来自PHP Webservice的响应

3 个答案: