Question

我是Java中的Apache camel和Jax b概念的新手。我有一个camel队列中的java对象列表。我想用Javs DSL将它转换为xml（不使用spring）。任何人都可以指导我这样做吗？

我有以下POJO类

public class MyPojo {
private int groupId;
private int memberId;
private String details;
public int getgroupId() {
    return groupId;
}
public void setgroupId(int groupId) {
    this.groupId = groupId;
}
public int getMemberId() {
    return memberId;
}
public void setMemberId(int memberId) {
    this.memberId = memberId;
}
public String getdetails() {
    return details;
}
public void setdetails(String details) {
    this.details = details;
}}

以下是我的jaxb实现的骆驼代码

JaxbDataFormat jaxbMarshal = new JaxbDataFormat();
    jaxbMarshal.setContextPath("com.test");
    jaxbMarshal.setPartClass("com.test.MyPojo");

from("direct:javaObjects") //this direct having the list of MYPojo Objects
    .marshal(jaxbMarshal)
     .to("src/output");

我遇到异常（我在类路径中为jaxb添加了maven依赖）

Failed to create route route4 at: >>> Marshal[org.apache.camel.model.dataformat.JaxbDataFormat@3feb2dda] <<< in route: Route(route4)[[From[direct:javaObjects]] -> [Marshal[org.apa... because of Data format 'jaxb' could not be created. Ensure that the data format is valid and the associated Camel component is present on the classpath

Answer 1

我创建了jaxb.index文件（来自eclipse的new-＆gt;文件）。文件的内容应该是注释类名

在我们的情况下应该是的 MyPojo

并且需要将其放在上下文路径中。在我们的情况下，它应该被放入 com.test 位置

和带注释的Pojo类是

@XmlAccessorType(XmlAccessType.FIELD) @XmlRootElement public class MyPojo { @XmlElement private int groupId; @XmlElement private int memberId; @XmlElement private String details; public int getgroupId() { return groupId; } public void setgroupId(int groupId) { this.groupId = groupId; } public int getMemberId() { return memberId; } public void setMemberId(int memberId) { this.memberId = memberId; } public String getdetails() { return details; } public void setdetails(String details) { this.details = details; }}

Answer 2

您可以使用带有注释的pojo：

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name="MY-POJO")
@XmlType(propOrder = {"groupId", "memberId", "details"})
public class MyPojo {
@XmlElement(name = "groupId")
private int groupId;
@XmlElement(name = "memberId")
private int memberId;
@XmlElement(name = "details")
private String details;
public int getgroupId() {
    return groupId;
}
public void setgroupId(int groupId) {
    this.groupId = groupId;
}
public int getMemberId() {
    return memberId;
}
public void setMemberId(int memberId) {
    this.memberId = memberId;
}
public String getdetails() {
    return details;
}
public void setdetails(String details) {
    this.details = details;
}}

JaxB Marshaling在骆驼

2 个答案: