Home Backend Development XML/RSS Tutorial How to generate XML in java

How to generate XML in java

Jan 11, 2017 pm 01:25 PM

本文实例讲述了java生成XML的方法。分享给大家供大家参考,具体如下:

下拉框的生成,我是通过javascript读取xml文件生成的。Xml文件是根据数据库生成的。Xml文件只相当于页面到数据库的一道缓存。这样利于性能。生成xml文件又是一件繁琐的事情。只好交给机器去做了。真正的情景是程序定期自动或人为手动触发程序生成xml。今天我单独把xml文件生成的功能剥离出来写了一个小程序。

具体的实现是,使用jxl.jar读取(我承认我很喜欢使用Execel写配置)的SQL语句。SQL要指明哪些是名称、哪些是代码、哪些是父级代码。Mybatis查询数据,拼装报文写入文件。这次写了一个jar包程序。运行前请自备jre。

核心代码:XmlCreateService.java

package com.fitweber.service;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import com.fitweber.util.CommonUtils;
import com.fitweber.util.ExecelUtils;
/**
 * <pre class="brush:php;toolbar:false">
 * XML文件生成器
 * 
* @author wheatmark hajima11@163.com * @version 1.00.00 *
 * 修改记录
 * 修改后版本:  修改人: 修改日期:  修改内容:
 * 
*/ public class XmlCreateService { @SuppressWarnings({ "rawtypes", "unused", "unchecked" }) public static void main(String[] argc){ String resource = "META-INF/conf/mybatis-config.xml"; String root = ""; InputStream inputStream; try { //拿到数据库连接 inputStream = Resources.getResourceAsStream(resource); SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream); SqlSession session = sqlSessionFactory.openSession(); //拿到查询参数 List requestList = ExecelUtils.readExecelSimple("xmlmaker.xls"); //定义变量 int i,j,listSize; String filename,sqlstament,temp;; HashMap requestMap = new HashMap(); Map map; StringBuffer buf = new StringBuffer(); for(Object l:requestList){ List list = (List)l; listSize = list.size(); filename =(String)list.get(1); sqlstament =(String)list.get(2); requestMap.put("sql", sqlstament); List result = session.selectList("com.fitweber.dao.XmlCreateDao.xmlDataQuery",requestMap); for(Object r:result){ buf.append(""); } CommonUtils.saveFile(null, (System.getProperty("user.dir")+"\\xml\\").replace("\\", "/")+filename, (""),false); buf.setLength(0); } session.close(); } catch (IOException e) { e.printStackTrace(); } } }
Copy after login

更多java生成XML的方法相关文章请关注PHP中文网!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1655
14
PHP Tutorial
1254
29
C# Tutorial
1228
24
Securing Your XML/RSS Feeds: A Comprehensive Security Checklist Securing Your XML/RSS Feeds: A Comprehensive Security Checklist Apr 08, 2025 am 12:06 AM

Methods to ensure the security of XML/RSSfeeds include: 1. Data verification, 2. Encrypted transmission, 3. Access control, 4. Logs and monitoring. These measures protect the integrity and confidentiality of data through network security protocols, data encryption algorithms and access control mechanisms.

Advanced XML/RSS Tutorial: Ace Your Next Technical Interview Advanced XML/RSS Tutorial: Ace Your Next Technical Interview Apr 06, 2025 am 12:12 AM

XML is a markup language for data storage and exchange, and RSS is an XML-based format for publishing updated content. 1. XML defines data structures, suitable for data exchange and storage. 2.RSS is used for content subscription and uses special libraries when parsing. 3. When parsing XML, you can use DOM or SAX. When generating XML and RSS, elements and attributes must be set correctly.

RSS Document Tools: Building, Validating, and Publishing Feeds RSS Document Tools: Building, Validating, and Publishing Feeds Apr 09, 2025 am 12:10 AM

How to build, validate and publish RSSfeeds? 1. Build: Use Python scripts to generate RSSfeed, including title, link, description and release date. 2. Verification: Use FeedValidator.org or Python script to check whether RSSfeed complies with RSS2.0 standards. 3. Publish: Upload RSS files to the server, or use Flask to generate and publish RSSfeed dynamically. Through these steps, you can effectively manage and share content.

Is There an RSS Alternative Based on JSON? Is There an RSS Alternative Based on JSON? Apr 10, 2025 am 09:31 AM

JSONFeed is a JSON-based RSS alternative that has its advantages simplicity and ease of use. 1) JSONFeed uses JSON format, which is easy to generate and parse. 2) It supports dynamic generation and is suitable for modern web development. 3) Using JSONFeed can improve content management efficiency and user experience.

XML's Advantages in RSS: A Technical Deep Dive XML's Advantages in RSS: A Technical Deep Dive Apr 23, 2025 am 12:02 AM

XML has the advantages of structured data, scalability, cross-platform compatibility and parsing verification in RSS. 1) Structured data ensures consistency and reliability of content; 2) Scalability allows the addition of custom tags to suit content needs; 3) Cross-platform compatibility makes it work seamlessly on different devices; 4) Analytical and verification tools ensure the quality and integrity of the feed.

From XML to Readable Content: Demystifying RSS Feeds From XML to Readable Content: Demystifying RSS Feeds Apr 11, 2025 am 12:03 AM

RSSfeedsareXMLdocumentsusedforcontentaggregationanddistribution.Totransformthemintoreadablecontent:1)ParsetheXMLusinglibrarieslikefeedparserinPython.2)HandledifferentRSSversionsandpotentialparsingerrors.3)Transformthedataintouser-friendlyformatsliket

From XML/RSS to JSON: Modern Data Transformation Strategies From XML/RSS to JSON: Modern Data Transformation Strategies Apr 05, 2025 am 12:08 AM

Use Python to convert from XML/RSS to JSON. 1) parse source data, 2) extract fields, 3) convert to JSON, 4) output JSON. Use the xml.etree.ElementTree and feedparser libraries to parse XML/RSS, and use the json library to generate JSON data.

Building Feeds with XML: A Hands-On Guide to RSS Building Feeds with XML: A Hands-On Guide to RSS Apr 14, 2025 am 12:17 AM

The steps to build an RSSfeed using XML are as follows: 1. Create the root element and set the version; 2. Add the channel element and its basic information; 3. Add the entry element, including the title, link and description; 4. Convert the XML structure to a string and output it. With these steps, you can create a valid RSSfeed from scratch and enhance its functionality by adding additional elements such as release date and author information.

See all articles