XMLPuLL解析

package com.bawei.day14_xmlpull;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import android.os.Bundle;
import android.app.Activity;
import android.util.Xml;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {

    private ListView mStuListView;
    private List<Student> stus;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TextView tv=(TextView) findViewById(R.id.tv);
        mStuListView = (ListView) findViewById(R.id.stuList);
        try {
           //调用方法
        parseStudent(getAssets().open("persons.xml"));
            if (stus != null && stus.size() > 0) {
                ArrayAdapter<Student> adapter = new ArrayAdapter<Student>(this,    android.R.layout.simple_list_item_1, stus);
                mStuListView.setAdapter(adapter);
            }
            
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

    private List<Student> parseStudent(InputStream is) {
        stus = new ArrayList<Student>();
            //创建pull解析器
        XmlPullParser parser = Xml.newPullParser();
        try {
               //把需要解析的数据添加到解析器中,并设置数据格式
            parser.setInput(is, "utf-8");
                //通过解析器触发第一次事件，并获取事件类型码
            int eventType = parser.getEventType();
            //定义用来存储标签名称的变量
            String tagName = "";
            Student stu = null;
                //判断是否解析到文档末尾，没有则循环解析
            while (eventType != XmlPullParser.END_DOCUMENT) {
                switch (eventType) {
                    //开始解析文档
                case XmlPullParser.START_DOCUMENT:
                    break;
                    //开始解析标签
                case XmlPullParser.START_TAG:
                       //得到标签名字
                    tagName = parser.getName();
                       //判断正在接戏的元素标签是否是person
                    if ("person".equals(tagName)) {
                        stu = new Student();
                        stu.setId(Integer.valueOf(parser.getAttributeValue(0)));

                    }
                    break;
                      //解析到文本
                case XmlPullParser.TEXT:
                       //得到当前正在解析的文本内容
                    String text = parser.getText();
                    if (stu != null) {
                              //判断正在解析的文本内容是哪个元素节点里的
                        if ("name".equals(tagName)) {
                            stu.setName(text);
                        } else if ("age".equals(tagName)) {
                            stu.setAge(Integer.parseInt(text));
                        }
                    }
                    break;
                    //解析到结束标签
                case XmlPullParser.END_TAG:
                        //得到正在解析的元素标签名
                    tagName = parser.getName();
                       //得到正在解析的元素标签名是否是person
                    if ("person".equals(tagName)) {
                        stus.add(stu);
                        stu = null;

                    }

                    tagName = "";
                    break;

                } 
                    //本次事件处理完毕，进入下一个节点，下一个事件
                eventType = parser.next();
            }
            
        } catch (XmlPullParserException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            
                try {
                    if(is!=null){
                    is.close();
                    }
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            
        }

        return stus;
    }

}

 json解析

import com.google.gson.Gson;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TextView textView = (TextView) findViewById(R.id.tv);
        try {
            InputStream is=getAssets().open("newsList.json");
            int length = is.available();
            byte[] buffer=new byte[length];
            is.read(buffer);
            String jsonStr=new String(buffer,0,length);
             Gson g=new Gson();
             SuperJsonParse sjp=g.fromJson(jsonStr,SuperJsonParse.class);
             textView.setText(sjp.toString());
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

   
    
}