The received data is of String type, in the following format:
"<?xml version="1.0" encoding="UTF-8"?><Data version="2.0" xmlns="https://www.baidu.com/"><name>花花</name><age>0</age><Progress>100</captureProgress></CaptureFaceData>"
- For ease of understanding, the sentence is as follows:
<?xml version="1.0" encoding="UTF-8"?>
<Data version="2.0" xmlns="https://www.baidu.com/">
<name>花花</name>
<age>5</age>
<Progress>100</Progress>
</Date>
usage
XmlData xmlData = new XmlData();
XmlPer data2 = xmlData.getData("XML的数据（String）");
//XmlPer类里面就是分析的xml数据
Write a utility class method,
package com.example.myapplication.utils;
import android.util.Log;
import android.util.Xml;
import com.example.myapplication.demo.model.data.XmlPer;
import org.xmlpull.v1.XmlPullParser;
import java.io.ByteArrayInputStream;
public class XmlData{
public static XmlPer getData(String data1) throws Exception {
ByteArrayInputStream inputstream = new ByteArrayInputStream(data1.getBytes());
XmlPullParser xml = Xml.newPullParser();
xml.setInput(inputstream, "UTF-8");
int event = xml.getEventType();
XmlPer xmlPer = new XmlPer();
while (event != XmlPullParser.END_DOCUMENT) {
switch (event) {
//开始解析文档
case XmlPullParser.START_DOCUMENT:
Log.d("TAG", "开始解析-------------------");
break;
case XmlPullParser.START_TAG:
Log.d("TAG", "解析中-------------------");
String value = xml.getName();
if (value.equals("Data")) {
//XmlPer对象的初始化必须在这里初始化不然可能出现为null的现象
//......
} else if (value.equals("name")) {
xmlPer.setName(xml.nextText());
} else if (value.equals("age")) {
xmlPer.setAge(xml.nextText());
} else if (value.equals("Progress")) {
xmlPer.setProgress(xml.nextText());
}
break;
case XmlPullParser.END_TAG:
Log.d("TAG", "结束解析-------------------");
break;
}
//解析下一个对象
event = xml.next();
}
return xmlPer;
}
}
Post the XmlPer class too
public class XmlPer {
private String name;
private String age;
private String Progress;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
public String getProgress() {
return Progress;
}
public void setProgress(String progress) {
Progress = progress;
}
}
- Finish
If it is a list collection, as follows
<?xml version="1.0" encoding="UTF-8"?>
<Data version="2.0" xmlns="https://www.baidu.com/">
<person id="1">
<name>花花</name>
<age>5</age>
<Progress>100</Progress>
</person>
<person id="2">
<name>牛牛</name>
<age>6</age>
<Progress>100</Progress>
</person>
</Data>
It is written as follows:
package com.example.myapplication.utils;
import android.util.Log;
import android.util.Xml;
import com.example.myapplication.demo.model.data.XmlPer;
import org.xmlpull.v1.XmlPullParser;
import java.io.ByteArrayInputStream;
public class XmlData{
public static List<XmlPer> getData(String data1) throws Exception {
ByteArrayInputStream inputstream = new ByteArrayInputStream(data1.getBytes());
XmlPullParser xml = Xml.newPullParser();
xml.setInput(inputstream, "UTF-8");
int event = xml.getEventType();
XmlPer xmlPer = null;
List<XmlPer> list=null;
while (event != XmlPullParser.END_DOCUMENT) {
switch (event) {
//开始解析文档
case XmlPullParser.START_DOCUMENT:
list=new ArrayList<XmlPer>();
Log.d("TAG", "开始解析-------------------");
break;
case XmlPullParser.START_TAG:
Log.d("TAG", "解析中-------------------");
String value = xml.getName();
if (value.equals("person")) {
//XmlPer对象的初始化必须在这里初始化不然可能出现为null的现象
xmlPer = new XmlPer();
} else if (value.equals("name")) {
xmlPer.setName(xml.nextText());
} else if (value.equals("age")) {
xmlPer.setAge(xml.nextText());
} else if (value.equals("Progress")) {
xmlPer.setProgress(xml.nextText());
}
break;
case XmlPullParser.END_TAG:
if(xml.getName().equals("person")){
list.add(xmlPer);
xmlPer=null;
}
Log.d("TAG", "结束解析-------------------");
break;
}
//解析下一个对象
event = xml.next();
}
return list;
}
}
The following is the mutual conversion between String/InputStream/File
Mutual conversion between String/InputStream/File
String 转 InputStream
/**
* 将str转换为inputStream
* @param str
* @return
*/
public static InputStream str2InputStream(String str) {
ByteArrayInputStream is = new ByteArrayInputStream(str.getBytes());
return is;
}
InputStream 转 String
/**
* 将inputStream转换为str
* @param is
* @return
* @throws IOException
*/
public static String inputStream2Str(InputStream is) throws IOException {
StringBuffer sb;
BufferedReader br = null;
try {
br = new BufferedReader(new InputStreamReader(is));
sb = new StringBuffer();
String data;
while ((data = br.readLine()) != null) {
sb.append(data);
}
} finally {
br.close();
}
return sb.toString();
}
Conversion between InputStream and File
File 转 InputStream
/**
* 将file转换为inputStream
* @param file
* @return
* @throws FileNotFoundException
*/
public static InputStream file2InputStream(File file) throws FileNotFoundException {
return new FileInputStream(file);
}
InputStream 转 File
/**
* 将inputStream转化为file
* @param is
* @param file 要输出的文件目录
*/
public static void inputStream2File(InputStream is, File file) throws IOException {
OutputStream os = null;
try {
os = new FileOutputStream(file);
int len = 0;
byte[] buffer = new byte[8192];
while ((len = is.read(buffer)) != -1) {
os.write(buffer, 0, len);
}
} finally {
os.close();
is.close();
}
}