sax 解析：从 div 标签中获取值

Question

在 android 应用程序中，我要解析一个 xml 页面。xml 页面中的数据是下面这种格式：

<root>
<tag1>data</tag1>

<tag2> 
<div>data1</div><div>data2</div>
</tag2>
</root>

通过 sax 解析来获取数据：

if (localName.equalsIgnoreCase("tag1"))
if (localName.equalsIgnoreCase("tag2"))

但是我不能从tag2中得到任何数据，能从tag1中获得值。我想获取所有数据包括div标签
然后把数据显示在html页面上。

Answer 1

使用下面的代码，应该能达到你要的功能。

currentTag = localName;
        if ("tag1".equalsIgnoreCase(localName)) {
            responseTag = new StringBuffer();
        }else if ("tag2".equalsIgnoreCase(localName)) {
            responseTag = new StringBuffer();
        }else if ("div".equalsIgnoreCase(localName)) {
            responseTag = new StringBuffer();
        }
    }

    @Override
    public void endElement(String uri, String localName, String name)
            throws SAXException {
        super.endElement(uri, localName, name);
        String responseValue = responseTag.toString().trim();

        if ("tag1".equalsIgnoreCase(localName)) {
            Log.v("TAG", "Tag 1 value "+responseValue);
        }else if ("tag2".equalsIgnoreCase(localName)) {
            Log.v("TAG", "Tag 2 value "+responseValue);
        }else if ("div".equalsIgnoreCase(localName)) {
            Log.v("TAG", "div value "+responseValue);
        }
    }

    @Override
    public void characters(char[] ch, int start, int length)
            throws SAXException {
        super.characters(ch, start, length);
        str = new String(ch, start, length);

        if ("tag1".equalsIgnoreCase(currentTag)) {
            responseTag.append(str);
        }else if ("tag2".equalsIgnoreCase(currentTag)) {
            responseTag.append(str);
        }else if ("div".equalsIgnoreCase(currentTag)) {
            responseTag.append(str);
        }
    }
}