我正在尝试使用 Apache Camel Bindy 创建一个固定文件阅读器，但出现异常。请帮助我找到解决方案。没有页眉和页脚，效果很好。
更新: 文件小到现在无法理解，并添加了 public
文件内容:
101-08-2009
30A9
20A9
60A9
40A9
10A9
50A8
9000000002
新异常:
java.lang.IllegalArgumentException: Some fields are missing (optional or mandatory), line: 2
at org.apache.camel.dataformat.bindy.BindyFixedLengthFactory.bind(BindyFixedLengthFactory.java:295) ~[camel-bindy-2.19.1.jar:2.19.1]
at org.apache.camel.dataformat.bindy.fixed.BindyFixedLengthDataFormat.createModel(BindyFixedLengthDataFormat.java:294) ~[camel-bindy-2.19.1.jar:2.19.1]
异常:
org.apache.camel.RuntimeCamelException: java.lang.IllegalAccessException: Class org.apache.camel.util.ObjectHelper can not access a member of class com.camel.examples.OrderHeader with modifiers ""
at org.apache.camel.util.ObjectHelper.newInstance(ObjectHelper.java:1686) ~[camel-core-2.19.1.jar:2.19.1]
路由器:
// @Override
public void configure() throws Exception {
Comparator<Order> comparator = new Comparator<Order>() {
@Override
public int compare(Order o1, Order o2) {
return o1.getOrderNr() - o2.getOrderNr();
}
};
DataFormat bindy = new BindyFixedLengthDataFormat(Order.class);
from("file:C:/Users/workspace/SampleProjects/in?delete=true")
.routeId("ValidateFile-Post2Q")
.unmarshal(bindy).split(body().sort(comparator));
模型 Java 类:
@FixedLengthRecord(length = 4, paddingChar = ' ', header = OrderHeader.class, footer = OrderFooter.class)
public class Order {
private @Link OrderHeader header;
private @Link OrderFooter footer;
@DataField(pos = 1, length = 2)
private int orderNr;
@DataField(pos = 3, length = 2)
private String clientNr;
@Override
public String toString() {
// TODO Auto-generated method stub
return orderNr + clientNr + header + footer;
}
public OrderHeader getHeader() {
return header;
}
public void setHeader(OrderHeader header) {
this.header = header;
}
public OrderFooter getFooter() {
return footer;
}
public void setFooter(OrderFooter footer) {
this.footer = footer;
}
public int getOrderNr() {
return orderNr;
}
public void setOrderNr(int orderNr) {
this.orderNr = orderNr;
}
public String getClientNr() {
return clientNr;
}
public void setClientNr(String clientNr) {
this.clientNr = clientNr;
}
}
@FixedLengthRecord
public class OrderFooter {
@DataField(pos = 1, length = 1)
public int recordType ;
@DataField(pos = 2, length = 9)
public String numberOfRecordsInTheFile;
public String toString() {
return recordType + ":" + numberOfRecordsInTheFile;
}
public int getRecordType() {
return recordType;
}
public void setRecordType(int recordType) {
this.recordType = recordType;
}
public String getNumberOfRecordsInTheFile() {
return numberOfRecordsInTheFile;
}
public void setNumberOfRecordsInTheFile(String numberOfRecordsInTheFile) {
this.numberOfRecordsInTheFile = numberOfRecordsInTheFile;
}
}
@FixedLengthRecord
public class OrderHeader {
@DataField(pos = 1, length = 1)
public int recordType = 1;
@DataField(pos = 2, length = 10, pattern = "dd-MM-yyyy")
public Date recordDate;
public String toString() {
return recordType + ":" + new SimpleDateFormat("dd-MM-yyyy").format(recordDate);
}
public int getRecordType() {
return recordType;
}
public void setRecordType(int recordType) {
this.recordType = recordType;
}
public Date getRecordDate() {
return recordDate;
}
public void setRecordDate(Date recordDate) {
this.recordDate = recordDate;
}
}
依赖关系:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.springframework</groupId>
<artifactId>gs-spring-boot</artifactId>
<version>0.1.0</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.8.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
<version>2.19.1</version>
</dependency>
<!-- Camel xquery support -->
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-saxon</artifactId>
<version>2.19.1</version>
</dependency>
<!-- Camel JMS support and ActiveMq -->
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jms</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-camel</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-broker</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-ftp</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-bindy</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-stream</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-restlet</artifactId>
<version>2.19.1</version>
</dependency>
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-flatpack</artifactId>
<version>2.19.1</version>
</dependency>
<!-- Hawtio dependency - a lightweight web console to monitor and manage
application -->
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-springboot</artifactId>
<version>1.5.2</version>
</dependency>
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-core</artifactId>
<version>1.5.2</version>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
最佳答案
我快速浏览了 camel bindy 组件测试，但找不到将 @FixedLengthRecord(header,footer) 与 @Link 组合在一起的测试
您的问题的一种可能的解决方法是
从订单中的页眉和页脚字段中删除@Link，例如
@FixedLengthRecord(length = 4, paddingChar = ' ', header = OrderHeader.class, footer = OrderFooter.class) public class Order { <pre><code> private OrderHeader header; private OrderFooter footer; } </code></pre>2.然后页眉和页脚被 bindy 成功处理并添加到交换中作为标题(“CamelBindyFixedLengthHeader”，“CamelBindyFixedLengthFooter”)因此使用处理器您可以将它们设置为订单页眉，之后的页脚字段 例如
.unmarshal(bindy).split(body()).process(exchange -> { Order order = exchange.getIn().getBody(Order.class);<br/> order.setFooter((OrderFooter)exchange.getIn().getHeader(BindyFixedLengthDataFormat.CAMEL_BINDY_FIXED_LENGTH_FOOTER,Map.class).get(OrderFooter.class.getName())); order.setHeader((OrderHeader)exchange.getIn().getHeader(BindyFixedLengthDataFormat.CAMEL_BINDY_FIXED_LENGTH_HEADER,Map.class).get(OrderHeader.class.getName())); });
相关camel单元测试here
关于java.lang.IllegalArgumentException : Some fields are missing (optional or mandatory) 异常，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47071656/