Android中組裝xml文件內容

在Android開發中經常遇到組裝xml格式數據的需求，下面是解決方法，希望給大家帶來幫助。

下面這段xml文件內容是我們的需求。

<?xml version='1.0' encoding='utf-8' standalone='no' ?>
<persons>
    <person key="one">
        <name>zhangsan</name>
        <age>26</age>
    </person>
    <person key="two">
        <name>lisi</name>
        <age>25</age>
    </person>
</persons>

下面是組裝xml文件內容的代碼。關於如何解析xml文件，請參見這篇博文：使用SAX解析XML文件

import org.xmlpull.v1.XmlSerializer;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.util.Xml;
import java.io.IOException;
import java.io.StringWriter;

public class MainActivity extends Activity {

    public static final String TAG = "MainActivity";

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Log.d(TAG, createXMLData());
    }

    /**
     * create xml data
     *
     * @return
     */
    protected String createXMLData() {

        XmlSerializer serializer = Xml.newSerializer();
        StringWriter stringWriter = new StringWriter();

        try {
            serializer.setOutput(stringWriter);
            serializer.startDocument("utf-8", false);
            // start persons
            serializer.startTag(null, "persons");

            // one
            serializer.startTag(null, "person");
            serializer.attribute(null, "key", "one");

            serializer.startTag(null, "name");
            serializer.text("zhangsan");
            serializer.endTag(null, "name");

            serializer.startTag(null, "age");
            serializer.text("26");
            serializer.endTag(null, "age");

            serializer.endTag(null, "person");

            // two
            serializer.startTag(null, "person");
            serializer.attribute(null, "key", "two");

            serializer.startTag(null, "name");
            serializer.text("lisi");
            serializer.endTag(null, "name");

            serializer.startTag(null, "age");
            serializer.text("25");
            serializer.endTag(null, "age");

            serializer.endTag(null, "person");

            // end persons
            serializer.endTag(null, "persons");

            serializer.endDocument();

        } catch (IOException e) {
            e.printStackTrace();
        }
        return stringWriter.toString();
    }
}