java语句如何获取XML文件的节点值

你说的是获取指定id下面的节点的属性值吧！

程序如下，其中equal（“”）双引号中的值为节点的属性值

属性值获取如下：

package saxbuilderibmxmlproperty;

import javaioFile;

import javaioIOException;

import javautilIterator;

import orgdom4jAttribute;

import orgdom4jDocument;

import orgdom4jDocumentException;

import orgdom4jElement;

import orgdom4jioSAXReader;

import orgjdomJDOMException;

import orgjdominputSAXBuilder;

public class XmlProperty {

public Element element;

String path = "D:\\xml\\axml";

public void getElementProperty() {

File file = new File(path);

try {

SAXReader reader = new SAXReader();

Document dc = readerread(file);

Element e = dcgetRootElement();

// 节点值

Element child = (Element) egetQName("COMMAND");

Systemoutprintln(childtoString());

// 一级节点

for (Iterator iterator = eelementIterator(); iteratorhasNext();) {

Element el = (Element) iteratornext();

// 一级节点的属性信息

for (Iterator iterator2 = elattributeIterator(); iterator2

hasNext();) {

Attribute attribute = (Attribute) iterator2next();

if(attributegetName()equals("bodyCategory")){

Systemoutprintln("attributegetName()一级节点的属性信息+"+attributegetName()+attributegetValue());

}else{

Systemoutprintln("attributegetName()一级节点的属性信息+"+attributegetName()+attributegetValue());

}

// 二级节点

for (Iterator iterator3 = elelementIterator(); iterator3

hasNext();) {

Element ele = (Element) iterator3next();

// 二级节点的属性信息

for (Iterator iterator4 = eleattributeIterator(); iterator4

hasNext();) {

Attribute attribute1 = (Attribute) iterator4next();

if(attribute1getName()equals("cmdType")){

Systemoutprintln("attribute1getName()二级节点的属性信息+"+attribute1getName()+"+"+attribute1getValue());

}else{

Systemoutprintln("attribute1getName()二级节点的属性信息+"+attribute1getName()+"+"+attribute1getValue());

}

}

}

}

} catch (DocumentException e) {

// TODO Auto-generated catch block

eprintStackTrace();

}

}

}

创建解析器

SAXReader saxreader = new SAXReader();

读取文档

Document doc = saxreaderread(new File("url"));

获取根

Element root = docgetRootElement();

获取子节点

List<Element> list = rootelements();

Systemoutprintln(eelementText("name"));

Systemoutprintln(eelement("score")attributeValue("java"));

Reader reader = new InputStreamReader(con

getInputStream());

SAXReader sax = new SAXReader();

// saxsetEncoding("GBK");

Document document = saxread(reader);

documentsetXMLEncoding("GBK");

Element root = documentgetRootElement();

// Document doc = readerread(read);

// Element root = docgetRootElement();

readNode(root, "");

public static void readNode(Element root, String prefix) {

if (root == null) return;

// 获取属性

List<Attribute> attrs = rootattributes();

if (attrs != null && attrssize() > 0) {

Systemerrprint(prefix);

for (Attribute attr : attrs) {

Systemerrprint(attrgetValue() + " ");

}

Systemerrprintln();

}

// 获取他的子节点

List<Element> childNodes = rootelements();

prefix += "\t";

for (Element e : childNodes) {

//输出内容

Systemerrprintln(egetName()+":"+egetData());

readNode(e, prefix);

}

}

用XPath比较简单点也可以用xmldom

xmltype('<xml version="10" encoding="gbk">

<SERVICE>

<IDA_SVR_USERBILL>

<CALL_METHOD>queryProcessStepList</CALL_METHOD>

</IDA_SVR_USERBILL>

</SERVICE>')extract('//CALL_METHOD/child::text()')getstringval()

测试:

SELECT xmltype('<xml version="10" encoding="gbk">

<SERVICE>

<IDA_SVR_USERBILL>

<CALL_METHOD>queryProcessStepList</CALL_METHOD>

</IDA_SVR_USERBILL>

</SERVICE>')extract('//CALL_METHOD/child::text()')getstringval()

from dual;

这是参考代码，差不多可以结贴采纳我吧。

public SqlConnection GetCon()

{

SqlConnection G_Con = null; ;

try

{

string configFile = PathCombine(PathGetDirectoryName(ApplicationExecutablePath), "参数配置xml");

if (FileExists(configFile))

{

XmlOperator xmlOperator = new XmlOperator(configFile);

int size = xmlOperatorGetXmlReader()Length;

string[] getDataBaseInfo = new string[size];

for (int i = 0; i < size; i++)

{

getDataBaseInfo[i] = xmlOperatorGetXmlReader()[i];

}

string G_Str_ConnectionString = "Server=" + getDataBaseInfo[0];

G_Str_ConnectionString += ";user id=" + getDataBaseInfo[1];

G_Str_ConnectionString += ";password=" + getDataBaseInfo[2];

G_Str_ConnectionString += ";initial catalog=" + getDataBaseInfo[3] + ";Connect Timeout=20";

G_Con = new SqlConnection(G_Str_ConnectionString);

}

else

{

MessageBoxShow("不存在配置文件,请添加!");

ApplicationExit();

}

}

catch (InvalidOperationException ex)

{

MessageBoxShow("数据库打开失败,错误原因：" + exMessageToString());

}

return G_Con;

}

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