Normally, there are three type parser in android. Xmlpullparser, DOM & SAX.
Google recomand Xmlpullparser to doing this.
But to parser xml files or inputstream, it based on xml content.
So using an general way to parser xml.
BaseXmlObj:
/***********************************************************
*@description : This class function is TODO
*
* @create author : deman.lu
* @create date :2015-07-15
* @modify author :
* @modify date :
* @contact: [email protected]
*
**********************************************************/
package com.joyfulmath.androidstudy.connect.xmlparser;
import java.lang.reflect.Field;
public abstract class BaseXmlObj {
public abstract String[] getNodes();
public void setParamater(String tag, Object value) {
try {
Field field = getClass().getField(tag);
field.setAccessible(true);
field.set(this, value);
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
}
/***********************************************************
*@description : This class function is TODO
*
* @create author : deman.lu
* @create date :2015-07-15
* @modify author :
* @modify date :
* @contact: [email protected]
*
**********************************************************/
package com.joyfulmath.androidstudy.connect.xmlparser;
import java.io.InputStream;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import android.content.res.XmlResourceParser;
public class XmlParserUtils {
private static String encode = "utf-8";
public static XmlPullParser pullParser;
static {
try {
pullParser = XmlPullParserFactory.newInstance().newPullParser();
} catch (XmlPullParserException e) {
e.printStackTrace();
}
}
/**
*
* @description :解析节点中的内容，封装成对象模型。
*
* @author : deman.lu
*
* @create :2015-07-15
*
* @param in network data contains xml
*
* @param obj
*
* @throws Exception
*
* @return :T extends BaseXmlObj
*/
public static <T extends BaseXmlObj> void streamText2Model(InputStream in,
T obj) throws Exception {
pullParser.setInput(in, encode);
int eventType = pullParser.getEventType();
String[] nodes = obj.getNodes();
String nodeName = null;
boolean success = true;
while (eventType != XmlPullParser.END_DOCUMENT && success) {
switch (eventType) {
case XmlPullParser.START_DOCUMENT:
break;
case XmlPullParser.START_TAG:
nodeName = pullParser.getName();
break;
case XmlPullParser.TEXT:
for (int i = 0; i < nodes.length; i++) {
if (nodes[i].equals(nodeName)) {
obj.setParamater(nodeName, pullParser.getText());
}
}
break;
case XmlPullParser.END_TAG:
break;
}
eventType = pullParser.next();
}
}
/**
*
* @description :解析节点中的内容，封装成对象模型。
*
* @author : deman.lu
*
* @create :2015-07-15
*
* @param resParser XmlResourceParser read form resource
*
* @param obj
*
* @throws Exception
*
* @return :void
*/
public static <T extends BaseXmlObj> void streamText2Model(XmlResourceParser resParser,
T obj) throws Exception {
int eventType = resParser.getEventType();
String[] nodes = obj.getNodes();
String nodeName = null;
boolean success = true;
while (eventType != XmlPullParser.END_DOCUMENT && success) {
switch (eventType) {
case XmlPullParser.START_DOCUMENT:
break;
case XmlPullParser.START_TAG:
nodeName = resParser.getName();
break;
case XmlPullParser.TEXT:
for (int i = 0; i < nodes.length; i++) {
if (nodes[i].equals(nodeName)) {
obj.setParamater(nodeName, resParser.getText());
}
}
break;
case XmlPullParser.END_TAG:
break;
}
eventType = resParser.next();
}
}
}
we using reflect, but if xml is complex, the efficiency may be low.
The way should be decided.
package com.joyfulmath.androidstudy.connect;
import java.io.Serializable;
import com.joyfulmath.androidstudy.connect.xmlparser.BaseXmlObj;
public class Student extends BaseXmlObj implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
public String GradeID, GradeName, ClassID, ClassName, UserID, UserName;
public Student() {
}
@Override
public String[] getNodes() {
return new String[] { "GradeID", "GradeName", "ClassID", "ClassName", "UserID", "UserName" };
}
@Override
public String toString() {
String su = "@student:"+"GradeID:"+GradeID
+"GradeName:"+GradeName
+"ClassID:"+ClassID
+"ClassName:"+ClassName
+"UserID:"+UserID
+"UserName:"+UserName;
return NetWorkUtils.replaceBlank(su);
}
}
package com.joyfulmath.androidstudy.connect;
import com.joyfulmath.androidstudy.connect.xmlparser.XmlParserUtils;
import android.content.Context;
import android.content.res.XmlResourceParser;
public class XmlParserDemo {
public static Student parserStudentXml(Context context,int resId)
{
try {
Student student = new Student();
XmlResourceParser xml = context.getResources()
.getXml(resId);
XmlParserUtils.streamText2Model(xml, student);
xml.close();
return student;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<DsXml>
<IsLog>
true
</IsLog>
<GradeID>
10001
</GradeID>
<GradeName>
高一年级
</GradeName>
<ClassID>
10010
</ClassID>
<ClassName>
高一(01)班
</ClassName>
<UserID>
10000
</UserID>
<UserName>
张三
</UserName>
</DsXml>
转载：http://www.cnblogs.com/vanezkw/archive/2013/03/03/2941496.html
时间： 2024-10-27 13:30:45