Android pull解析xml的实现方法

Android pull解析xml的实现方法

资源文件：

persons.xml

  
 
   
    jame  
    18  
   
   
    Tom  
    20  
   
   
    Jack  
    16  
   
   
    Rose  
    26  
   
 

activity布局文件

activity_main.xml

javaBean:

public class Person { 
  private int id; 
  private String name; 
  private int age; 
 
  public Person() { 
    super(); 
  } 
 
  public Person(int id, String name, int age) { 
    super(); 
    this.id = id; 
    this.name = name; 
    this.age = age; 
  } 
 
  public int getId() { 
    return id; 
  } 
 
  public void setId(int id) { 
    this.id = id; 
  } 
 
  public String getName() { 
    return name; 
  } 
 
  public void setName(String name) { 
    this.name = name; 
  } 
 
  public int getAge() { 
    return age; 
  } 
 
  public void setAge(int age) { 
    this.age = age; 
  } 
 
  @Override 
  public String toString() { 
    return "Person [id=" + id + ", name=" + name + ", age=" + age + "]"; 
  } 
 
} 

主activity:

import java.io.File; 
import java.io.FileInputStream; 
import java.io.InputStream; 
import java.util.ArrayList; 
import java.util.List; 
 
import org.xmlpull.v1.XmlPullParser; 
 
import android.app.Activity; 
import android.os.Bundle; 
import android.os.Environment; 
import android.util.Xml; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.TextView; 
 
public class MainActivity extends Activity implements onClickListener { 
 
  private TextView tv_content; 
 
  @Override 
  protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
 
    tv_content = (TextView) findViewById(R.id.tv_content); 
 
    findViewById(R.id.bt_read).setonClickListener(this); 
 
  } 
 
  @Override 
  public void onClick(View v) { 
    try { 
      if (Environment.getExternalStorageState().equals( 
   Environment.MEDIA_MOUNTED)) { 
 
 List persons = new ArrayList(); 
 Person person = null; 
 
 File sd_file = Environment.getExternalStorageDirectory(); 
 File file = new File(sd_file, "persons.xml"); 
 InputStream inputStream = new FileInputStream(file); 
 // 获取xml Pull解析器 
 XmlPullParser pullParser = Xml.newPullParser(); 
 // 解析文件 
 pullParser.setInput(inputStream, "utf-8"); 
 // 得到事件类型（START_document,END_document,START_TAG, END_TAG, TEXT, 
 // etc） 
 int eventType = pullParser.getEventType(); 
 while (eventType != XmlPullParser.END_document) { 
   switch (eventType) { 
   case XmlPullParser.START_TAG: 
     // 获取标签的名称 
     String tag_name = pullParser.getName(); 
     if ("person".equals(tag_name)) { 
person = new Person(); 
persons.add(person); 
 
// String value = pullParser.getAttributevalue(null, 
// "id"); 
String value = pullParser.getAttributevalue(0); 
person.setId(Integer.parseInt(value)); 
     } else if ("name".equals(tag_name)) { 
// pullParser.next(); 
// String text = pullParser.getText(); 
String text = pullParser.nextText(); 
person.setName(text); 
 
     } else if ("age".equals(tag_name)) { 
// pullParser.next(); 
// String text = pullParser.getText(); 
String text = pullParser.nextText(); 
person.setAge(Integer.parseInt(text)); 
     } 
     break; 
 
   default: 
     break; 
   } 
   eventType = pullParser.next(); 
 } 
 tv_content.setText(persons.toString()); 
      } 
    } catch (Exception e) { 
      e.printStackTrace(); 
    } 
  } 
} 

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