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Php利用java解析xml

Jun 21, 2016 am 09:09 AM
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xml

作者: 雨伞
首先如果你对JAVA不感兴趣或者说你的主机不支持JAVA或者你也不打算学习的话请不要浪费时间在这里。

请先安装JAVA的执行环境与PHP结合,具体参考http://www.phpx.com/happy/thr78795.html

或者下载http://www.javax.org/download/php_java.rar
里面我写有个readme.txt说明文档,这个压缩包是个简单的例子。

要下载我的JAVA源码请到http://www.javax.org/download/JavaXml.rar

有其他问题请到http://www.javax.org/提问。


一开始我想用PHP解析XML,但发现PHP要解析XML有点麻烦,好象PHP5比较方便了,但我这边没有装5,还是4.3。后来我看到IBM一篇文章(http://www-900.cn.ibm.com/developer...kit/index.shtml)讲到可以利用JAVA来做,所以我现在就试验了一下。

要解析的XML文件:first.xml,内容如下:



小曾
20


雨伞
20


其中是根,是节点,一共有两个,name值名字不一样,一个是小曾一个是雨伞,年龄一样。

下面看PHP解析时候的文件:

/*
作者:雨伞
时间:2004/12/28
*/

$JavaXml = new Java("JavaXml"); //这里是生成一个我写的JAVA解析XML数据的类
$JavaXml->init(); //这里为初始化,比如取global.properties文件里的XML文件目录(当然你下载了例子以后要改成你的XML文件目录)
$JavaXml->Parse("first.xml"); //指定要解析的文件,相对于global.properties文件里指定的目录下
$JavaXml->get(0); //这里为取得第一个节点
echo $JavaXml->getValue("name")."
"; //取得第一个节点name标签值
echo $JavaXml->getValue("age")."
"; //取得第一个节点age标签值
$JavaXml->setValue("name","大头爸爸"); //设置第一个节点name标签值为大头爸爸
$JavaXml->get(1); //这里为取得第二个节点
echo $JavaXml->getValue("name")."
"; //取得第二个节点name标签值
echo $JavaXml->getValue("age")."
"; //取得第二个节点age标签值
?>


$JavaXml->get(0);取得节点位置,比如我的XML文件有两组,这里get(0)的话就是取第一组的 ,get(1)就是取第二组的.

最后输出是
小曾
20
雨伞
20

因为$JavaXml->setValue("name","大头爸爸"); 这句修改了第一个节点的name标签的值,XML文件已经被更新过了,所以当再执行一次这个PHP文件的时候结果会成为
大头爸爸
20
雨伞
20


以上简单几句就解析完了,下面是我的JAVA类,里面用到了JDOM来解析XML。

import org.jdom.* ;
import org.jdom.output.* ;
import org.jdom.input.* ;
import java.io.* ;
import java.util.*;
/*
作者:雨伞
时间:2004/12/28
*/
public class JavaXml {
public String path=null;
public String XmlFileName=null;
public SAXBuilder sax=null;
public Document doc=null;
public Element root=null;
public List xlist=null;
public Element e=null;
public Element value=null;

public String getTest(){
return new String("haha");
}
public JavaXml(){

}

public String init(){

InputStream is = getClass().getResourceAsStream("global.properties");
Properties dbProps = new Properties();
try {
dbProps.load( is ) ;
}
catch ( Exception e ) {
return ("error file");
}
this.path=dbProps.getProperty("XmlPath");
return ("ok");
}

public void get(int child){
this.e=(Element)xlist.get(child);
}
public String getValue(String name){
this.value=e.getChild(name);
return this.value.getText();
}
public void setValue(String name,String value)throws Exception{
this.value=e.getChild(name);
this.value.setText(value);
XMLOutputter xmlout=new XMLOutputter();
xmlout.output(doc,new FileOutputStream(path+XmlFileName));
}

public void Parse(String XmlFileName)
throws Exception
{
this.XmlFileName=XmlFileName;
this.sax=new SAXBuilder();
this.doc=sax.build(new FileInputStream(path+XmlFileName));
this.root=doc.getRootElement();
this.xlist=root.getChildren();
}

}


如果还有什么不懂的请跟贴,这样子对新手不知道是更麻烦还是更方便了,请大家发表自己的意见,如果各位觉得可以的话我将继续完善那个JAVA类,提供更多的解析XML的功能。



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