json轉xml
阿新 • • 發佈:2018-12-30
1、引入jar包
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.1.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>demo</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>net.sf.json-lib</groupId> <artifactId>json-lib</artifactId> <version>2.3</version> <classifier>jdk15</classifier> </dependency> <dependency> <groupId>com.thoughtworks.xstream</groupId> <artifactId>xstream</artifactId> <version>1.4.10</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-beanutils/commons-beanutils --> <dependency> <groupId>commons-beanutils</groupId> <artifactId>commons-beanutils</artifactId> <version>1.8.3</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-collections/commons-collections --> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.2</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-io --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-io</artifactId> <version>1.3.2</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-lang/commons-lang --> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.6</version> </dependency> <!-- https://mvnrepository.com/artifact/net.sf.ezmorph/ezmorph --> <dependency> <groupId>net.sf.ezmorph</groupId> <artifactId>ezmorph</artifactId> <version>1.0.6</version> </dependency> <!-- https://mvnrepository.com/artifact/org.json/json --> <dependency> <groupId>org.json</groupId> <artifactId>json</artifactId> <version>20160810</version> </dependency> <dependency> <groupId>de.odysseus.staxon</groupId> <artifactId>staxon</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>xom</groupId> <artifactId>xom</artifactId> <version>1.1</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
2、程式碼:
package com.example.demo.tree; import com.thoughtworks.xstream.XStream; import de.odysseus.staxon.json.JsonXMLConfig; import de.odysseus.staxon.json.JsonXMLConfigBuilder; import de.odysseus.staxon.json.JsonXMLInputFactory; import de.odysseus.staxon.xml.util.PrettyXMLEventWriter; import javax.xml.stream.XMLEventReader; import javax.xml.stream.XMLEventWriter; import javax.xml.stream.XMLOutputFactory; import java.io.StringReader; import java.io.StringWriter; public class XmlTest { public static String textMessageToXml(TreeNode mm) { XStream xStream = new XStream(); xStream.alias("xml", TreeNode.class); return xStream.toXML(mm); } public static String json2xml(String json) { StringReader input = new StringReader(json); StringWriter output = new StringWriter(); JsonXMLConfig config = new JsonXMLConfigBuilder().multiplePI(false).repairingNamespaces(false).build(); try { XMLEventReader reader = new JsonXMLInputFactory(config).createXMLEventReader(input); XMLEventWriter writer = XMLOutputFactory.newInstance().createXMLEventWriter(output); writer=new PrettyXMLEventWriter(writer); writer.add(reader); reader.close(); writer.close(); } catch (Exception e) { e.printStackTrace(); } finally { try { output.close(); input.close(); }catch (Exception ex){ } } System.out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>".length()); String result=output.toString(); if(result.length()>=38){ result=result.substring(38); } return result; } public static void main(String[] args) { String json = "{\n" + " \"ksnos\": [\n" + " {\n" + " \"ksno\": \"1002103\"\n" + " },\n" + " {\n" + " \"ksno\": \"1002104\"\n" + " },\n" + " {\n" + " \"ksno\": \"17410101152304\"\n" + " }\n" + " ],\n" + " \"count\": \"3\"\n" + "}"; String xml=json2xml(json); System.out.println(xml); } }