一、声明版本依赖
项目负责版本管理的pom依赖如下声明引用
<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.18</version><relativePath/></parent>在定义share或者api的pom中
添加如下依赖，因为需要用到jackson xml的注解
<dependency><groupId>com.fasterxml.jackson.dataformat</groupId><artifactId>jackson-dataformat-xml</artifactId></dependency>用的比较多是
@JacksonXmlRootElement 标注在类上
@JacksonXmlProperty 标注下属性上
@JacksonXmlElementWrapper 标注在集合属性上
具体怎么使用网上比我写的详细
应用pom添加如下依赖
<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><exclusions><exclusion><artifactId>jackson-core</artifactId><groupId>com.fasterxml.jackson.core</groupId></exclusion></exclusions></dependency>二、示例
小demo
@Data
@JacksonXmlRootElement(localName = "ROOT")
public class XmlBean {@JacksonXmlProperty(localName = "Name")private String name;@JacksonXmlElementWrapper(localName = "List")private List<String> list;
} XmlMapper xmlMapper = new XmlMapper();
xmlMapper.configure(ToXmlGenerator.Feature.WRITE_XML_DECLARATION, true);
System.out.println(xmlMapper.writeValueAsString(new XmlBean()));输出
<?xml version='1.0' encoding='UTF-8'?><ROOT><Name/></ROOT>对于有层级的集合
@Data
@JacksonXmlRootElement(localName = "ROOT")
public class XmlBean {@JacksonXmlProperty(localName = "Name")private String name;@JacksonXmlElementWrapper(localName = "List")@JacksonXmlProperty(localName = "Detail")private List<Detail> list;@Datapublic static class Detail{@JacksonXmlProperty(localName = "Key")private String key;}
} XmlBean xmlBean = new XmlBean();System.out.println(xmlMapper.writeValueAsString(xmlBean));xmlBean.setName("测试");XmlBean.Detail detail = new XmlBean.Detail();detail.setKey("key");xmlBean.setList(Lists.newArrayList(detail));System.out.println(xmlMapper.writerWithDefaultPrettyPrinter().writeValueAsString(xmlBean));输出为
<ROOT><Name>测试</Name><List><Detail><Key>key</Key></Detail></List>
</ROOT>同理，xml转bean
三、获取节点
/*** 根据xml或者节点的值** @param xml 指定xml如此* @param nodeName 节点名称，区分大小写* @return 节点对应的值* @throws JsonProcessingException 异常*/public static String nodeValue(String xml, String nodeName) throws JsonProcessingException {XmlMapper xmlMapper = new XmlMapper();xmlMapper.configure(ToXmlGenerator.Feature.WRITE_XML_DECLARATION, false);JsonNode rootNode = xmlMapper.readTree(xml);List<JsonNode> values = rootNode.findValues(nodeName);//此处只保留第一条且需要做判空处理return values.get(0).asText();}
)
