android 使用XStream解析xml

最新推荐文章于 2024-07-07 03:49:48 发布

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#android #XStream #xml解析

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本文介绍了一个具体的XML数据解析案例，包括定义XML结构、创建对应的Java实体类和使用XStream进行XML到Java对象的转换。

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1，要解析的xml文件文件

xml="<apps>\n" +
                " <app>\n" +
                "    <id>1</id>\n" +
                "    <name>burn</name>\n" +
                "    <version>1.0</version>\n" +
                "    <info>\n" +
                "      <size>10.5</size>\n" +
                "      <message>hhhhhhhh</message>\n" +
                "    </info>\n" +
                "    <info>\n" +
                "      <size>10.5</size>\n" +
                "      <message>hhhhhhhh</message>\n" +
                "    </info>\n" +
                " </app>\n" +
                " <app>\n" +
                "    <id>2</id>\n" +
                "    <name>burn2</name>\n" +
                "    <version>2.1</version>\n" +
                "    <info>\n" +
                "      <size>10.5</size>\n" +
                "      <message>hhhhhhhh</message>\n" +
                "    </info>\n" +
                "    <info>\n" +
                "      <size>10.5</size>\n" +
                "      <message>hhhhhhhh</message>\n" +
                "    </info>\n" +
                " </app>\n" +
                " <app>\n" +
                "    <id>3</id>\n" +
                "    <name>burn3</name>\n" +
                "    <version>3.2</version>\n" +
                "    <info>\n" +
                "      <size>10.5</size>\n" +
                "      <message>hhhhhhhh</message>\n" +
                "    </info>\n" +
                "    <info>\n" +
                "      <size>10.5</size>\n" +
                "      <message>hhhhhhhh</message>\n" +
                "    </info>\n" +
                " </app>\n" +
                "</apps>";

2，新建xml文件对应的封装类

/**

* 
xml数据对应的封装类(注意实体类和xml数据的对应关系，所有标签都得对应)

*/

@XStreamAlias("apps")//配置标签别名

public class AppBean {

@XStreamImplicit//忽略集合根节点

private List<App> app_list;

//必须有无参构造方法

public AppBean() {

}

public AppBean(List<App> app_list) {

this.app_list = app_list;

}

public List<App> getApp_list() {

return app_list;

}

public void setApp_list(List<App> app_list) {

this.app_list = app_list;

}

@XStreamAlias("app")

public static class App{

private long id;

private String name;

private String version;

@XStreamImplicit

private List<Infor> infor_list;

public App() {

}

public App(long id, List<Infor> infor_list, String name, String version) {

this.id = id;

this.infor_list = infor_list;

this.name = name;

this.version = version;

}

public long getId() {

return id;

}

public void setId(long id) {

this.id = id;

}

public List<Infor> getInfor_list() {

return infor_list;

}

public void setInfor_list(List<Infor> infor_list) {

this.infor_list = infor_list;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getVersion() {

return version;

}

public void setVersion(String version) {

this.version = version;

}

@XStreamAlias("info")

public static class Infor{

private String message;

private double size;

public Infor() {

}

public Infor(String message, double size) {

this.message = message;

this.size = size;

}

public String getMessage() {

return message;

}

public void setMessage(String message) {

this.message = message;

}

public double getSize() {

return size;

}

public void setSize(double size) {

this.size = size;

}

}

}

}

3，开始xml解析

XStream xStream=new XStream();
xStream.processAnnotations(AppBean.class);//声明使用注解的类
AppBean ab2= (AppBean) xStream.fromXML(xml);//xml-->Bean，只能解析为对象，不能解析为集合
String xml=xStream.toXML(AppBean.class)//Bean-->xml