Dom4j modified xml document introduction
We have introduced how to parse the content of xnl documents before. Here we will discuss how to modify xml.
1. First, take a look at the main code to write the content into the xml document:
XMLWriter writer = new XMLWriter(OutputStream, OutputForamt) wirter.write(Document);
The entire business logic and explanation are as shown in the following code :
##
public class Demo1 {
public static void main(String[] args) throws Exception{
//一、读取或创建一个Document对象
//读取day07项目的xm文件(封装数据源)
Document doc = new SAXReader().read(new File("./src/contact.xml"));
//二、修改Document对象内容.那么这里就把原来的文档给修改了。
//注意:如果这里不做修改数据源文件的内容,则相当于复制功能。
//三、把修改后的Document对象写出到xml文档中
//指定文件输出的位置(封装目的地)
FileOutputStream out = new FileOutputStream("d:/contact.xml");
//1.创建写出对象,指定写出位置。
XMLWriter writer = new XMLWriter(out);
//2.写出对象,把数据源的文件内容经过修改之后写到目的地文件内去。
writer.write(doc);
//3.关闭流
writer.close();
}
}##
public class Demo2 {
/**
* @param args
*/
public static void main(String[] args) throws Exception{
Document doc = new SAXReader().read(new File("./src/contact.xml"));
//指定文件输出的位置
FileOutputStream out = new FileOutputStream("d:/contact.xml");
/**
* 1.指定写出的格式
*/
OutputFormat format = OutputFormat.createCompactFormat(); //紧凑的格式.去除空格换行.项目上线的时候使用
//OutputFormat format = OutputFormat.createPrettyPrint(); //漂亮的格式.有空格和换行.开发调试的时候使用
/**
* 2.指定生成的xml文档的编码
* 同时影响了xml文档保存时的编码 和 xml文档声明的encoding(xml解析时的编码)的编码。都设置成了一个编码方式保持了一致。
* 结论: 使用该方法生成的xml文档避免中文乱码问题。
*/
format.setEncoding("utf-8");
//1.创建写出对象
XMLWriter writer = new XMLWriter(out,format);
//2.写出对象
writer.write(doc);
//3.关闭流
writer.close();
}
}
What we have to do is to modify the "two" part . The next article will explain the entire process in code form, and the process of modifying files with dom4j.
The above is the content introduced by Dom4j to modify the xml document. For more related content, please pay attention to the PHP Chinese website (m.sbmmt.com)!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1389
52
Can I open an XML file using PowerPoint?
Feb 19, 2024 pm 09:06 PM
Can XML files be opened with PPT? XML, Extensible Markup Language (Extensible Markup Language), is a universal markup language that is widely used in data exchange and data storage. Compared with HTML, XML is more flexible and can define its own tags and data structures, making the storage and exchange of data more convenient and unified. PPT, or PowerPoint, is a software developed by Microsoft for creating presentations. It provides a comprehensive way of
Using Python to merge and deduplicate XML data
Aug 07, 2023 am 11:33 AM
Using Python to merge and deduplicate XML data XML (eXtensibleMarkupLanguage) is a markup language used to store and transmit data. When processing XML data, sometimes we need to merge multiple XML files into one, or remove duplicate data. This article will introduce how to use Python to implement XML data merging and deduplication, and give corresponding code examples. 1. XML data merging When we have multiple XML files, we need to merge them
Convert XML data to CSV format in Python
Aug 11, 2023 pm 07:41 PM
Convert XML data in Python to CSV format XML (ExtensibleMarkupLanguage) is an extensible markup language commonly used for data storage and transmission. CSV (CommaSeparatedValues) is a comma-delimited text file format commonly used for data import and export. When processing data, sometimes it is necessary to convert XML data to CSV format for easy analysis and processing. Python is a powerful
Filtering and sorting XML data using Python
Aug 07, 2023 pm 04:17 PM
Implementing filtering and sorting of XML data using Python Introduction: XML is a commonly used data exchange format that stores data in the form of tags and attributes. When processing XML data, we often need to filter and sort the data. Python provides many useful tools and libraries to process XML data. This article will introduce how to use Python to filter and sort XML data. Reading the XML file Before we begin, we need to read the XML file. Python has many XML processing libraries,
Import XML data into database using PHP
Aug 07, 2023 am 09:58 AM
Importing XML data into the database using PHP Introduction: During development, we often need to import external data into the database for further processing and analysis. As a commonly used data exchange format, XML is often used to store and transmit structured data. This article will introduce how to use PHP to import XML data into a database. Step 1: Parse the XML file First, we need to parse the XML file and extract the required data. PHP provides several ways to parse XML, the most commonly used of which is using Simple
Python implements conversion between XML and JSON
Aug 07, 2023 pm 07:10 PM
Python implements conversion between XML and JSON Introduction: In the daily development process, we often need to convert data between different formats. XML and JSON are common data exchange formats. In Python, we can use various libraries to convert between XML and JSON. This article will introduce several commonly used methods, with code examples. 1. To convert XML to JSON in Python, we can use the xml.etree.ElementTree module
Handling errors and exceptions in XML using Python
Aug 08, 2023 pm 12:25 PM
Handling Errors and Exceptions in XML Using Python XML is a commonly used data format used to store and represent structured data. When we use Python to process XML, sometimes we may encounter some errors and exceptions. In this article, I will introduce how to use Python to handle errors and exceptions in XML, and provide some sample code for reference. Use try-except statement to catch XML parsing errors When we use Python to parse XML, sometimes we may encounter some
Python parsing special characters and escape sequences in XML
Aug 08, 2023 pm 12:46 PM
Python parses special characters and escape sequences in XML XML (eXtensibleMarkupLanguage) is a commonly used data exchange format used to transfer and store data between different systems. When processing XML files, you often encounter situations that contain special characters and escape sequences, which may cause parsing errors or misinterpretation of the data. Therefore, when parsing XML files using Python, we need to understand how to handle these special characters and escape sequences. 1. Special characters and


