Java 解析自定义XML文件

这里我用 maven项目作为演示

Java 解析自定义XML文件

配置pom.xml文件

完整的pom.xml文件信息

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 
 3 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5   <modelVersion>4.0.0</modelVersion>
 6 
 7   <groupId>com.oukele.Readerxml</groupId>
 8   <artifactId>ReaderXml</artifactId>
 9   <version>1.0-SNAPSHOT</version>
10 
11   <name>ReaderXml</name>
12   <!-- FIXME change it to the project's website -->
13   <url>http://www.example.com</url>
14 
15   <properties>
16     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
17     <maven.compiler.source>1.7</maven.compiler.source>
18     <maven.compiler.target>1.7</maven.compiler.target>
19   </properties>
20 <!--添加依赖-->
21   <dependencies>
22 
23   <!--单元测试-->
24     <dependency>
25       <groupId>junit</groupId>
26       <artifactId>junit</artifactId>
27       <version>4.11</version>
28       <scope>test</scope>
29     </dependency>
30 
31     <!-- dom4j 依赖-->
32     <dependency>
33       <groupId>org.dom4j</groupId>
34       <artifactId>dom4j</artifactId>
35       <version>2.1.1</version>
36     </dependency>
37 
38   </dependencies>
39 
40   
41   <build>
42     <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
43       <plugins>
44         <plugin>
45           <artifactId>maven-clean-plugin</artifactId>
46           <version>3.0.0</version>
47         </plugin>
48         <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
49         <plugin>
50           <artifactId>maven-resources-plugin</artifactId>
51           <version>3.0.2</version>
52         </plugin>
53         <plugin>
54           <artifactId>maven-compiler-plugin</artifactId>
55           <version>3.7.0</version>
56         </plugin>
57         <plugin>
58           <artifactId>maven-surefire-plugin</artifactId>
59           <version>2.20.1</version>
60         </plugin>
61         <plugin>
62           <artifactId>maven-jar-plugin</artifactId>
63           <version>3.0.2</version>
64         </plugin>
65         <plugin>
66           <artifactId>maven-install-plugin</artifactId>
67           <version>2.5.2</version>
68         </plugin>
69         <plugin>
70           <artifactId>maven-deploy-plugin</artifactId>
71           <version>2.8.2</version>
72         </plugin>
73       </plugins>
74     </pluginManagement>
75   </build>
76 
77 </project>

View Code

1 <?xml version="1.0" encoding="UTF-8" ?> 2  3 <beans> 4 5  6 <beans id="cat" class="com.oukele.Readerxml.animal.Cat" ></beans> 7 8 <beans id="dog" class="com.oukele.Readerxml.animal.Dog" ></beans> 9 10 </beans>

1 package com.oukele.Readerxml.ioc; 2 3 import org.dom4j.Document; 4 import org.dom4j.DocumentException; 5 import org.dom4j.Element; 6 import org.dom4j.io.SAXReader; 7 8 import java.net.URL; 9 import java.util.HashMap; 10 import java.util.List; 11 import java.util.Map; 12 13 public class Beans implements IBeans{ 14 15 private static Map<String,Object> banes = new HashMap<>(); 16 17 public Beans(String configxml) throws Exception { 18 //创建SAXReader对象 19 SAXReader reader = new SAXReader(); 20 //xml文件的位置 21 URL sources = Beans.class.getClassLoader().getResource(configxml); 22 //创建document对象,并读取xml文件（解析xml文件） 23 Document document = reader.read(sources); 24 //读取元素 getRootElement() --》获取父节点 elements() --> 所有节点 25 List<Element> elements = document.getRootElement().elements(); 26 27 for (Element element : elements) { 28 // <beans ></beans> 29 // id 是一个属性可以自定义 30 String id = element.attributeValue("id");//获取id属性 31 String clazz = element.attributeValue("class");//获取class属性 32 // id （钥匙）对应一个实例 33 banes.put(id,Class.forName(clazz).newInstance()); 34 } 35 36 } 37 38 39 @Override 40 public Object getBean(String name) { 41 //根据名字来获取实例 42 return banes.get(name); 43 } 44 }

1 package com.oukele.Readerxml; 2 3 import com.oukele.Readerxml.animal.Cat; 4 import com.oukele.Readerxml.animal.Dog; 5 import com.oukele.Readerxml.ioc.Beans; 6 import org.junit.Test; 7 8 public class AppTest 9 { 10 @Test 11 public void Test1(){ 12 try { 13 14 Beans beans = new Beans("test_xml.xml"); 15 16 Cat cat = (Cat) beans.getBean("cat"); 17 cat.say(); 18 19 System.out.println("----------------------------------"); 20 21 Dog dog = (Dog) beans.getBean("dog"); 22 dog.say(); 23 24 } catch (Exception e) { 25 e.printStackTrace(); 26 } 27 } 28 }

Java 解析自定义XML文件

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