java string类型xml解析为对象

最新推荐文章于 2023-12-11 14:49:15 发布

原创最新推荐文章于 2023-12-11 14:49:15 发布 · 1.4k 阅读

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文章标签：

#xml #java #对象

本文介绍了一种使用 Java 对 XML 文档进行解析的方法。通过创建对应的 JavaBean 和解析工具类，可以方便地将 XML 数据转换为 Java 对象。示例代码展示了如何逐条解析 XML 中的用户信息。

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下面是一个需要解析的xml：

string stringxml=“

<?xml version="1.0" encoding="GB2312" ?>

<userlist>

       <user>

              <userid>test@test.com</userid>

              <name>test123</name>

              <departmentid>1</departmentid>

              <office>CEO</office>

              <mobile>13800138000</mobile>

              <phone>01084291263</phone>

              <fax>01084291263001</fax>

       </user>

 

       <user>

              <userid>test2@test.com</userid>

              <name>test333</name>

              <departmentid>2</departmentid>

              <office>CEO</office>

              <mobile>138001380444</mobile>

              <phone>0108429145</phone>

              <fax>01084291263001</fax>

       </user>

</userlist>
”

xml写得有点随便，就是一个需要解析的长xml

代码：

第一：先创建一个跟xml文件字段对应的javabean：

package com.zy.mailbox.bean;

public class User {
 private String userid;
 private String name;
 private String departmentid;
 private String office;
 private String mobile;
 private String phone;
 private String fax;
public String getUserid() {
	return userid;
}
public void setUserid(String userid) {
	this.userid = userid;
}
public String getName() {
	return name;
}
public void setName(String name) {
	this.name = name;
}
public String getDepartmentid() {
	return departmentid;
}
public void setDepartmentid(String departmentid) {
	this.departmentid = departmentid;
}
public String getOffice() {
	return office;
}
public void setOffice(String office) {
	this.office = office;
}
public String getMobile() {
	return mobile;
}
public void setMobile(String mobile) {
	this.mobile = mobile;
}
public String getPhone() {
	return phone;
}
public void setPhone(String phone) {
	this.phone = phone;
}
public String getFax() {
	return fax;
}
public void setFax(String fax) {
	this.fax = fax;
}
@Override
public String toString() {
	return "User [userid=" + userid + ", name=" + name + ", departmentid=" + departmentid + ", office=" + office
			+ ", mobile=" + mobile + ", phone=" + phone + ", fax=" + fax + "]";
}
 
 
}

2.<=================编写解析工具========================>

package com.zy.mailbox.utils;
import java.io.IOException;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;


import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.Namespace;
import org.jdom.input.SAXBuilder;
import org.xml.sax.InputSource;

import com.zy.mailbox.bean.User;
public class ReadXML {
	
	 public static List<User> xmlElements(String xmlDoc) {
	        //创建一个新的字符串
	        StringReader read = new StringReader(xmlDoc);
	        //创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入
	        InputSource source = new InputSource(read);
	        //创建一个新的SAXBuilder
	        SAXBuilder sb = new SAXBuilder();
	       List<User> users = new ArrayList<>();
	        try {
	            //通过输入源构造一个Document
	            Document doc = sb.build(source);
	            //取的根元素
	            Element root = doc.getRootElement();
	            System.out.println(root.getName());//输出根元素的名称（测试）
	            //得到根元素所有子元素的集合
	            List jiedian = root.getChildren();
	            //获得XML中的命名空间（XML中未定义可不写）
	            Namespace ns = root.getNamespace();
	            Element et = null;
	            for(int i=0;i<jiedian.size();i++){
	                et = (Element) jiedian.get(i);//循环依次得到子元素
	               User user = new User();
	              String userid = et.getChild("userid",ns).getText();
	              String name = et.getChild("name",ns).getText();
	              String departmentid = et.getChild("departmentid",ns).getText();
	              String office = et.getChild("office",ns).getText();
	              String mobile = et.getChild("mobile",ns).getText();
	              String phone = et.getChild("phone",ns).getText();
	              String fax = et.getChild("fax",ns).getText();
	    	      user.setUserid(userid);
	    	      user.setName(name);
	    	      user.setDepartmentid(departmentid);
	    	      user.setOffice(office);
	    	      user.setMobile(mobile);
	    	      user.setPhone(phone);
    	          user.setFax(fax);
    	          users.add(user);
	            }
	           

	        } catch (JDOMException e) {
	           
	            e.printStackTrace();
	        } catch (IOException e) {
	            
	            e.printStackTrace();
	        }
	        return users;
}

}

最后运行打印：

User [userid=zhanjie@zy.com, name=张1杰, departmentid=717, office=教师, mobile=13268212733, phone=, fax=]
User [userid=zhangjixian1@zy.com, name=张洁娴, departmentid=9161, office=经理, mobile=+86-13922431120, phone=84419009-308, fax=]
User [userid=zhanjing1@zy.com, name=张静, departmentid=5104, office=校区校长, mobile=+86-13163789684, phone=, fax=]
User [userid=zhangjig@zy.com, name=张静, departmentid=5013, office=语文教师, mobile=13714430743, phone=, fax=]
User [userid=zhangjngxin@zy.com, name=张静欣, departmentid1=748, office=行政, mobile=13928888334, phone=, fax=]
User [userid=zhagjingya@zy.com, name=张静雅, departmentid=814, office=专职教师, mobile=18218880206, phone=, fax=]
User [userid=zhagjingyao@zy.com, name=张婧瑶, departmentid=9143, office=小升初英语研发主任, mobile=15975383408, phone=, fax=]

。。。。。。。。。。。。。。