Java把一个对象转换成xml数据

Bertha 。 2024-04-17 05:43 101阅读 0赞

### 使用jdk自带注解 ###

在一个实体类上添加注解

@XmlRootElement(name="AppAccountList")
    public class AppAccountListVO {
    
        private List<AppAccountEntity> appAccountList;
    
        public AppAccountListVO() {}
    
        public AppAccountListVO(List<AppAccountEntity> appAccountList) {
            this.appAccountList = appAccountList;
        }
    
        public List<AppAccountEntity> getAppAccountList() {
            return appAccountList;
        }
    
        @XmlElement(name="AppAccount")
        public void setAppAccountList(List<AppAccountEntity> appAccountList) {
            this.appAccountList = appAccountList;
        }
    }

===========================================================

@XmlRootElement(name="AppAccount")
    public class AppAccountEntity {
    
        private String code;
    
        private String appName;
    
        private String appUrl;
    
        private String redirectUrl;
    
        private String userName;
    
        private String passowrd;
    
        private String state;
    
        public String getCode() {
            return code;
        }
    
        @XmlElement(name = "Code")
        public void setCode(String Code) {
            this.code = Code;
        }
    
        public String getAppName() {
            return appName;
        }
    
        @XmlElement(name = "AppName")
        public void setAppName(String appName) {
            this.appName = appName;
        }
    
        public String getAppUrl() {
            return appUrl;
        }
    
        @XmlElement(name = "AppUrl")
        public void setAppUrl(String appUrl) {
            this.appUrl = appUrl;
        }
    
        public String getRedirectUrl() {
            return redirectUrl;
        }
    
        @XmlElement(name = "RedirectUrl")
        public void setRedirectUrl(String redirectUrl) {
            this.redirectUrl = redirectUrl;
        }
    
        public String getUserName() {
            return userName;
        }
    
        @XmlElement(name = "UserName")
        public void setUserName(String userName) {
            this.userName = userName;
        }
    
        public String getPassowrd() {
            return passowrd;
        }
    
        @XmlElement(name = "Password")
        public void setPassowrd(String passowrd) {
            this.passowrd = passowrd;
        }
    
        public String getState() {
            return state;
        }
    
        @XmlElement(name = "State")
        public void setState(String state) {
            this.state = state;
        }
    }

### main方法测试 ###

public class Main {
        public static void main(String[] args) throws Exception{
            List list = new ArrayList();
            AppAccountEntity appAccountEntity = new AppAccountEntity();
            appAccountEntity.setCode("code");
            appAccountEntity.setAppName("appname");
    
            list.add(appAccountEntity);
            AppAccountListVO authVO = new AppAccountListVO(list);
    
            JAXBContext context = JAXBContext.newInstance(AppAccountListVO.class);
            Marshaller marshaller = context.createMarshaller();
    
            marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");
            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
    
            //marshaller.marshal(authVO,System.out);
            // 打印到控制台
    
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            marshaller.marshal(authVO, baos);
            String xmlObj = new String(baos.toByteArray());
            // 生成XML字符串
            System.out.println(xmlObj);
        }
    }

### 结果 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQ0OTI2NjU_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTQ0OTI2NjU_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/11/34ead313747149649e9c1519e543abc1.png