Java 使用xmlpullparser解析xml时在列表中获取相同的值
我正在尝试解析资产文件夹中的一个xml文件。看起来一切正常,没有错误,但问题是它为xml中的每个节点的列表提供了相同的值。我觉得它覆盖了以前的值。我被困在这里。即使在谷歌搜索了很多次之后,也找不到任何解决方案。任何帮助都将不胜感激 代码如下:- Product.javaJava 使用xmlpullparser解析xml时在列表中获取相同的值,java,android,xml-parsing,Java,Android,Xml Parsing,我正在尝试解析资产文件夹中的一个xml文件。看起来一切正常,没有错误,但问题是它为xml中的每个节点的列表提供了相同的值。我觉得它覆盖了以前的值。我被困在这里。即使在谷歌搜索了很多次之后,也找不到任何解决方案。任何帮助都将不胜感激 代码如下:- Product.java package com.example.webservicedemo; public class product { private static String productname=""; privat
package com.example.webservicedemo;
public class product {
private static String productname="";
private static String productcolor="";
private static String productquantity="";
public static String getProductname() {
return productname;
}
public static void setProductname(String productname) {
product.productname = productname;
}
public static String getProductcolor() {
return productcolor;
}
public static void setProductcolor(String productcolor) {
product.productcolor = productcolor;
}
public static String getProductquantity() {
return productquantity;
}
public static void setProductquantity(String productquantity) {
product.productquantity = productquantity;
}
}
package com.example.webservicedemo;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserFactory;
import android.content.Context;
import android.content.res.AssetManager;
import android.widget.Toast;
import com.example.webservicedemo.*;
public class productXmlPullParser {
static final String KEY_PRODUCT = "product";
static final String KEY_NAME = "productname";
static final String KEY_COLOR = "productcolor";
static final String KEY_QUANTITY = "productquantity";
public static List<product> getproductsFromFile(Context ctx) {
String tagname;
List<product> Products;
Products = new ArrayList<product>();
product curproduct = null;
String curText = "";
InputStream is = null;
try {
is = ctx.getAssets().open("temp.xml");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
XmlPullParser xpp = factory.newPullParser();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
xpp.setInput(reader);
int eventType = xpp.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
tagname = xpp.getName();
switch (eventType) {
case XmlPullParser.START_TAG:
if (tagname.equalsIgnoreCase(KEY_PRODUCT)) {
curproduct = new product();
}
break;
case XmlPullParser.TEXT:
//grab the current text so we can use it in END_TAG event
curText = xpp.getText();
break;
case XmlPullParser.END_TAG:
if (tagname.equalsIgnoreCase(KEY_PRODUCT)) {
// if </site> then we are done with current Site
// add it to the list.
Products.add(curproduct);
// Toast.makeText(ctx, curproduct+"",3000).show();
} else if (tagname.equalsIgnoreCase(KEY_NAME)) {
// if </name> use setName() on curSite
product.setProductname(curText);
Toast.makeText(ctx, curText+"",3000).show();
} else if (tagname.equalsIgnoreCase(KEY_COLOR)) {
// if </link> use setLink() on curSite
curproduct.setProductcolor(curText);
Toast.makeText(ctx, curText+"",3000).show();
} else if (tagname.equalsIgnoreCase(KEY_QUANTITY)) {
// if </about> use setAbout() on curSite
curproduct.setProductquantity(curText);
Toast.makeText(ctx, curText+"",3000).show();
}
break;
default:
break;
}
//move on to next iteration
eventType = xpp.next();
}
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(ctx, "error", 6000).show();
}
// return the populated list.
return Products;
}
}
package com.example.webservicedemo;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.Toast;
import com.example.webservicedemo.productXmlPullParser;;;
public class UserList extends Activity {
UsersAdapter mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_xmlparsingdemo);
ListView lvUser=(ListView)findViewById(R.id.lvUsers);
mAdapter=new UsersAdapter(getApplicationContext(),R.layout.listitem,productXmlPullParser.getproductsFromFile(getApplicationContext()));
lvUser.setAdapter(mAdapter);
Toast.makeText(getApplicationContext(), mAdapter.getCount()+"",3000).show();
}
}
下面是解析器的代码:-
productXmlPullParser.java
package com.example.webservicedemo;
public class product {
private static String productname="";
private static String productcolor="";
private static String productquantity="";
public static String getProductname() {
return productname;
}
public static void setProductname(String productname) {
product.productname = productname;
}
public static String getProductcolor() {
return productcolor;
}
public static void setProductcolor(String productcolor) {
product.productcolor = productcolor;
}
public static String getProductquantity() {
return productquantity;
}
public static void setProductquantity(String productquantity) {
product.productquantity = productquantity;
}
}
package com.example.webservicedemo;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserFactory;
import android.content.Context;
import android.content.res.AssetManager;
import android.widget.Toast;
import com.example.webservicedemo.*;
public class productXmlPullParser {
static final String KEY_PRODUCT = "product";
static final String KEY_NAME = "productname";
static final String KEY_COLOR = "productcolor";
static final String KEY_QUANTITY = "productquantity";
public static List<product> getproductsFromFile(Context ctx) {
String tagname;
List<product> Products;
Products = new ArrayList<product>();
product curproduct = null;
String curText = "";
InputStream is = null;
try {
is = ctx.getAssets().open("temp.xml");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
XmlPullParser xpp = factory.newPullParser();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
xpp.setInput(reader);
int eventType = xpp.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
tagname = xpp.getName();
switch (eventType) {
case XmlPullParser.START_TAG:
if (tagname.equalsIgnoreCase(KEY_PRODUCT)) {
curproduct = new product();
}
break;
case XmlPullParser.TEXT:
//grab the current text so we can use it in END_TAG event
curText = xpp.getText();
break;
case XmlPullParser.END_TAG:
if (tagname.equalsIgnoreCase(KEY_PRODUCT)) {
// if </site> then we are done with current Site
// add it to the list.
Products.add(curproduct);
// Toast.makeText(ctx, curproduct+"",3000).show();
} else if (tagname.equalsIgnoreCase(KEY_NAME)) {
// if </name> use setName() on curSite
product.setProductname(curText);
Toast.makeText(ctx, curText+"",3000).show();
} else if (tagname.equalsIgnoreCase(KEY_COLOR)) {
// if </link> use setLink() on curSite
curproduct.setProductcolor(curText);
Toast.makeText(ctx, curText+"",3000).show();
} else if (tagname.equalsIgnoreCase(KEY_QUANTITY)) {
// if </about> use setAbout() on curSite
curproduct.setProductquantity(curText);
Toast.makeText(ctx, curText+"",3000).show();
}
break;
default:
break;
}
//move on to next iteration
eventType = xpp.next();
}
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(ctx, "error", 6000).show();
}
// return the populated list.
return Products;
}
}
package com.example.webservicedemo;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.Toast;
import com.example.webservicedemo.productXmlPullParser;;;
public class UserList extends Activity {
UsersAdapter mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_xmlparsingdemo);
ListView lvUser=(ListView)findViewById(R.id.lvUsers);
mAdapter=new UsersAdapter(getApplicationContext(),R.layout.listitem,productXmlPullParser.getproductsFromFile(getApplicationContext()));
lvUser.setAdapter(mAdapter);
Toast.makeText(getApplicationContext(), mAdapter.getCount()+"",3000).show();
}
}
以下是我试图解析的xml:--
temp.xml
<?xml version="1.0" encoding="UTF-8"?>
<products>
<product>
<productname>Jeans</productname>
<productcolor>red</productcolor>
<productquantity>5</productquantity>
</product>
<product>
<productname>Tshirt</productname>
<productcolor>blue</productcolor>
<productquantity>3</productquantity>
</product>
<product>
<productname>shorts</productname>
<productcolor>green</productcolor>
<productquantity>4</productquantity>
</product>
</products>
牛仔裤
红色
5.
T恤衫
蓝色
3.
短裤
绿色
4.
但输出类似于下面的屏幕截图:-
经过很多努力,我找不到哪里出了问题
如有任何帮助,我们将不胜感激。您在“产品”课程中遇到的问题。字段是静态的,每个字段包含所有实例的最后一个值。删除“静态”修改器,所有修改器都可以正常工作。检查此处解释的示例我看过本教程,但它给出了一些错误。我是新来解析,所以无法解决它。你能告诉我我的代码有什么问题吗。任何帮助都将不胜感激。