Spring boot @Group注释中的minOccurs属性导致意外的recordException

我是BeanIO的新手，我试图在文件中有特定记录类型可用时为组的出现配置验证逻辑。例如，如果平面文件中有三条记录，如下所示

560866
670972
57086659

我正在尝试设置以下逻辑

56行和67行一起构成多行记录

56和67条记录可以独立于57条记录而来，但57条记录不能没有56和67

我成功地使用@record annotation中的minOccurs属性创建了第一个验证，但无法使用组对56和67执行相同的验证

请在下面找到示例代码设置

HeaderRecord类保存56和67记录的详细信息

@Group
public class HeaderRecord {
    @Record(minOccurs = 1)
    public TX56 tx56;
    @Record(minOccurs = 1)
    public TX67 tx67;
}

RecordObject用于保存标题和行项目

public class RecordObject {
@Group(collection = List.class, minOccurs = 1)
    List<HeaderRecord> headerRecords;
    @Record(collection = List.class)
    List<TX57> tx57s;
}

@Record(maxLength = 10, name = "TX56")
public class TX56 {
    @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "56", trim = true)
    protected int id;
    @Field(ordinal = 1, at = 2, length = 4, trim = true)
    protected int number;
}

@Record(maxLength = 31, name = "TX67")
public class TX67 {
    @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "67", trim = true)
    protected int id;
    @Field(ordinal = 1, at = 2, length = 4, trim = true)
    protected int number;
}

@Record(maxLength = 71, name = "TX57")
public class TX57 {
    @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "57", trim = true)
    protected int id;
    @Field(ordinal = 1, at = 2, length = 4, trim = true)
    protected int number;
}

公共类记录对象{
@组（集合=List.class，minOccurs=1）
列出标题记录；
@记录（集合=List.class）
列出tx57s；
}
@记录（maxLength=10，name=“TX56”）
公共级TX56{
@字段（序号=0，at=0，长度=2，rid=true，literal=“56”，trim=true）
受保护的int-id；
@字段（序号=1，at=2，长度=4，修剪=true）
受保护整数；
}
@记录（maxLength=31，name=“TX67”）
公共级TX67{
@字段（序号=0，at=0，长度=2，rid=true，literal=“67”，trim=true）
受保护的int-id；
@字段（序号=1，at=2，长度=4，修剪=true）
受保护整数；
}
@记录（maxLength=71，name=“TX57”）
公共级TX57{
@字段（序号=0，at=0，长度=2，rid=true，literal=“57”，trim=true）
受保护的int-id；
@字段（序号=1，at=2，长度=4，修剪=true）
受保护整数；
}

使用上面的配置，当我试图用下面给出的记录解析文件时，它会抛出意外的RecordException。
560866
670972
57086659

堆栈跟踪：

2018-07-17 15:22:07778[http-nio-8080-exec-2]错误 org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/].[dispatcherServlet]-Servlet.service（）用于 抛出路径为[]的上下文中的servlet[dispatcherServlet] 异常[请求处理失败；嵌套异常为 org.beanio.UnexpectedRecordException:已到达流的结尾，应为 记录“tx56”]及其根本原因org.beanio.UnexpectedRecordException:End 已达到的流的个数，在处应为记录“tx56” org.beanio.internal.parser.UnmarshallingContext.newunsatifiedRecordException（UnmarshallingContext.java:367）~[beanio-2.1.0.jar:2.1.0] 在 org.beanio.internal.parser.Group.unmarshal（Group.java:127）~[beanio-.1.0.jar:2.1.0] 在 org.beanio.internal.parser.DelegatingParser.unmarshal（DelegatingParser.java:39）~[beanio-2.1.0.jar:2.1.0] 在 org.beanio.internal.parser.RecordCollection.unmarshal（RecordCollection.java:42）~[beanio-2.1.0.jar:2.1.0] 在 org.beanio.internal.parser.Group.unmarshal（Group.java:118）~[beanio-2.1.0.jar:2.1.0] 在 org.beanio.internal.parser.beanreader.internalRead（beanreader.java:106）~[beanio-2.1.0.jar:2.1.0] 在 org.beanio.internal.parser.beanreadrepl.read（beanreadrepl.java:67）~[beanio-2.1.0.jar:2.1.0] 在 dk.coop.integration.fileconversion.service.sampleapplication.createFixedLengthFile（sampleapplication.java:32）~[classes/：？]

注: 通过上述配置，以下场景可以正常工作

• 56和67独立提供
  560866
  670972
• 57不能单独来
  57086659:此平面文件失败，出现适当的异常
• 56和67应始终作为单个记录出现。
  这也很好

其他详情： 样本平面文件

560866
670972
560866
670972
560866
670972
57086659
57086659
57086659
57086659
52022
560866
670972
57086659

如上所述，在平面文件中，多个头记录和TX57记录可能作为单个实体出现。也可能有其他类型的记录介于两者之间，在这种情况下，我必须将第二次出现的TX56、67和57视为不同的项目。
在上面的示例中，前10条记录将形成一个recordObject，然后这些记录的第二次出现将形成第二个record object。很抱歉，之前没有共享，但是还有另一个包装器类，它包含recordObject的列表

---

我在下面给出正在工作的maven项目Github URL

编辑：在所有要求之后于2018年8月5日更新

我已经将类中的所有字段

设置为private

，并假设您已经准备好了getter+setter

我在

@Group

和

@Record

注释上尝试了各种设置组合，因此下面的代码可能不是最佳的，但应该可以工作

首先是保存所有数据的主组（

WrapperObject

）：

@Group(minOccurs = 1, maxOccurs = 1)
public class WrapperObject {

  @Group(minOccurs = 0, maxOccurs = 1, collection = List.class)
  private List<RecordObject> recordObjectList;
  @Record(minOccurs = 0, maxOccurs = -1, collection = List.class)
  private List<TX52> tx52s;
}

在各个TX记录上，我在记录标识符字段的

@字段上添加了
required=true
属性。
编辑：添加了TX52

@Record(maxLength = 74, name = "TX52")
public class TX52 {

  @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "52", trim = true, required = true)
  private int id;
  @Field(ordinal = 1, at = 2, length = 3, trim = true)
  private int number;
}

@Record(maxLength = 10, name = "TX56")
public class TX56 {

  @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "56", trim = true, required = true)
  private int id;
  @Field(ordinal = 1, at = 2, length = 4, trim = true, required = true)
  private int number;
}

@Record(maxLength = 31, name = "TX67")
public class TX67 {

  @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "67", trim = true, required = true)
  private int id;
  @Field(ordinal = 1, at = 2, length = 4, trim = true)
  private int number;
}

@Record(maxLength = 71, name = "TX57")
public class TX57 {

  @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "57", trim = true, required = true)
  private int id;
  @Field(ordinal = 1, at = 2, length = 4, trim = true)
  private int number;
}

最后，我的测试代码：（编辑：更新的测试数据）

生成此输出：（EDIT：使用
toString（）
方法）

希望这有帮助

让我知道它现在是否对您有效。
我无法重现您的问题，我遇到了其他错误，我正在努力解决这些错误。我不太了解如何在BeanIO上使用注释。您是否可以向我们展示如何配置
StreamFactory
，然后如何创建
BeanReader
，以从文件中读取数据。很抱歉响应延迟，我正在更新问题。所有其他相关细节。嗨，非常感谢您的回复。我之所以将headerRecord作为列表，是因为在一个集合中可能有多个记录。我有最新消息
@Record(maxLength = 74, name = "TX52")
public class TX52 {

  @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "52", trim = true, required = true)
  private int id;
  @Field(ordinal = 1, at = 2, length = 3, trim = true)
  private int number;
}

@Record(maxLength = 10, name = "TX56")
public class TX56 {

  @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "56", trim = true, required = true)
  private int id;
  @Field(ordinal = 1, at = 2, length = 4, trim = true, required = true)
  private int number;
}

@Record(maxLength = 31, name = "TX67")
public class TX67 {

  @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "67", trim = true, required = true)
  private int id;
  @Field(ordinal = 1, at = 2, length = 4, trim = true)
  private int number;
}

@Record(maxLength = 71, name = "TX57")
public class TX57 {

  @Field(ordinal = 0, at = 0, length = 2, rid = true, literal = "57", trim = true, required = true)
  private int id;
  @Field(ordinal = 1, at = 2, length = 4, trim = true)
  private int number;
}

@Test
public void test() {

  final StreamFactory factory = StreamFactory.newInstance();

  final StreamBuilder builder = new StreamBuilder("Jaydeep23")
    .format("fixedlength")
    .parser(new FixedLengthParserBuilder())
    .addGroup(WrapperObject.class);

  factory.define(builder);

  final String scenario1 = "560866\n670972\n560866\n670972\n560866\n670972";
  final String scenario2 = "560866\n670972\n560866\n670972\n560866\n670972\n57086659\n57086659\n57086659\n" +
  "57086659\n560866\n670972\n57086659\n560866\n670972";
  // invalid
  final String scenario3 = "57086659\n57086659\n57086659\n57086659\n57086659";
  final String scenario4 = "52022\n52066\n52054\n52120";
  final String scenario5 = scenario1;
  final String scenario6 = "560866\n670972\n560866\n670972\n560866\n670972\n57086659\n57086659\n57086659\n" +
  "57086659\n52021\n52022\n52023\n560866\n670972\n57086659\n52023";

  final String message = scenario1;
  BeanReader beanReader = null;
  Object object = null;
  try (final Reader in = new BufferedReader(new StringReader(message))) {
    beanReader = factory.createReader("Jaydeep23", in);
    beanReader.setErrorHandler(new LoggingBeanReaderErrorHandler());
    while ((object = beanReader.read()) != null) {
      System.out.println("Object = " + object);
    }
  } catch (final Exception e) {
    fail(e.getMessage());
  } finally {
    if (beanReader != null) {
      beanReader.close();
    }
  }
}

Scenario 1 = [[Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
]null]null

Scenario 2 = [[Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
][Record Type = 57, Store Number = 866
, Record Type = 57, Store Number = 866
, Record Type = 57, Store Number = 866
, Record Type = 57, Store Number = 866
, Record Type = 57, Store Number = 866
]]null

Scenario 3 - gives this error (which is correct according as TX57 is not allowed on its own:
Expected record/group 'tx56' at line 6

Scenario 4 = null[Record Type = 52, Store Number = 22
, Record Type = 52, Store Number = 66
, Record Type = 52, Store Number = 54
, Record Type = 52, Store Number = 120
]

Scenario 5 = [[Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
]null]null

Scenario 6 = [[Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
, Record Type = 56, Store Number = 866
Record Type = 67, Store Number = 972
][Record Type = 57, Store Number = 866
, Record Type = 57, Store Number = 866
, Record Type = 57, Store Number = 866
, Record Type = 57, Store Number = 866
]][Record Type = 52, Store Number = 21
, Record Type = 52, Store Number = 22
, Record Type = 52, Store Number = 23
]