当存在XMLComment而不是元素时,java Jackson XML反序列化失败
我有以下XML:
<licenseSummary>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.4</version>
<licenses>
<license>
<name>The Apache Software License, Version 2.0</name>
<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
<distribution>repo</distribution>
</license>
</licenses>
</dependency>
<dependency>
<groupId>somegroup</groupId>
<artifactId>someartifact</artifactId>
<version>2.43.0-SNAPSHOT</version>
<licenses>
<!--No license information available. -->
</licenses>
</dependency>
</dependencies>
</licenseSummary>
尝试反序列化此XML文件时,Jackson失败,因为在第二个<dependency />
-元素的<licenses />
部分中存在注释而不是元素,出现以下错误:
Cannot deserialize instance of `java.util.ArrayList` out of VALUE_STRING token
我尝试使用配置XMLMapper
,但这没有帮助:
ObjectMapper xmlMapper = new XmlMapper();
xmlMapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
以下是相关POJO的外观:
public class Dependency {
private String groupId;
private String artifactId;
private String version;
private List<License> licenses = new ArrayList<License>(1);
public String getGroupId() {
return groupId;
}
public void setGroupId(String groupId) {
this.groupId = groupId;
}
public String getArtifactId() {
return artifactId;
}
public void setArtifactId(String artifactId) {
this.artifactId = artifactId;
}
public String getVersion() {
return version;
}
public void setVersion(String version) {
this.version = version;
}
public List<License> getLicenses() {
return licenses;
}
public void setLicenses(List<License> licenses) {
this.licenses = licenses;
}
}
有人知道我怎么可以忽略这个评论吗。(顺便说一句:我无法删除XML文件中的注释)
jackson-dataformat-xml
版本2.9.4
# 1 楼答案
我最终实现了一个
DeserializationProblemHandler
并将其注册到xmlMapper
上,如下所示:以下是处理程序: