[英]JaxB2Marshaller Not Binding XML to Kotlin Data Class
我正在編寫一個批處理作業來解析XML,提取字段並將它們保存在數據庫中。 在解析XML時,它會選擇2個根元素,但是將所有字段保留為空,因此在我的數據庫中我有2個記錄將為空字段。 似乎無法弄清楚為什么它無法閱讀元素...... TIA
@Bean
fun xmlFileItemReader(environment: Environment): ItemReader<ConsumerInfo> {
val xmlFileReader = StaxEventItemReader<ConsumerInfo>()
xmlFileReader.setResource(ClassPathResource(environment.getRequiredProperty(PROPERTY_XML_SOURCE_FILE_PATH)))
xmlFileReader.setFragmentRootElementName("ConsumerInfo")
val customerMarshaller = Jaxb2Marshaller()
customerMarshaller.setClassesToBeBound(ConsumerInfo::class.java)
xmlFileReader.setUnmarshaller(customerMarshaller)
return xmlFileReader
}
Kotlin數據類
@XmlRootElement(name = "ConsumerInfo", namespace = *Its correct*)
@XmlAccessorType(XmlAccessType.FIELD)
data class ConsumerInfo(
@XmlElement(name = "LastName")
var lastName: String? = null,
@XmlElement(name = "FirstName")
var firstName: String? = null,
@XmlElement(name = "GenerationCode")
var generationCode: String? = null,
@XmlElement(name = "Street")
var street: String? = null,
@XmlElement(name = "City")
var city: String? = null,
@XmlElement(name = "State")
)
XML
<ConsumerInfo>
<LastName>lastn</LastName>
<FirstName>firstn</FirstName>
<GenerationCode>g</GenerationCode>
<Street>strt</Street>
<City>cty</City>
<State>st</State>
</ConsumerInfo>
<ConsumerInfo>
<LastName>last</LastName>
<FirstName>first</FirstName>
<GenerationCode>gc</GenerationCode>
<Street>street</Street>
<City>city</City>
<State>state</State>
</ConsumerInfo>
compile('org.springframework.boot:spring-boot-starter-batch')
compile('org.springframework.boot:spring-boot-starter-jdbc')
compile('com.fasterxml.jackson.module:jackson-module-kotlin')
// https://mvnrepository.com/artifact/org.springframework/spring-oxm
compile group: 'org.springframework', name: 'spring-oxm', version: '5.1.6.RELEASE'
compile("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
compile("org.jetbrains.kotlin:kotlin-reflect")
compile ('org.postgresql:postgresql')
testCompile('org.springframework.boot:spring-boot-starter-test')
}
更新:
在使用Kotlin Data類時,似乎@XmlElement(name =“*****”)沒有將reader / marshaller映射到該字段,它使用val名稱來嘗試映射。 如果你想將@XmlELement與Kotlin一起使用,你需要明確地創建你的getter。
Kotlin解決方案:
@XmlRootElement(name = "ConsumerInfo")
class DemoCustomer {
@get:XmlElement(name = "FirstName")
var firstName: String? = null
@get:XmlElement(name = "LastName")
var lastName: String? = null
}
Java解決方案:
@XmlRootElement(name = "ConsumerInfo")
public class DemoCustomer {
private String firstName;
private String lastName;
@XmlElement(name= "FirstName")
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
@XmlElement(name = "LastName")
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
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