我在使用 Spring Batch 2.1.9 时遇到问题:当我使用jobExplorer.getJobExecution(jobExecutionId)时,当 DAO 必须反序列化如下字符串时,我发现了一个问题:
{"map":[{"entry":{"string":"parsedComparingDate","date":"2014-03-08 23:00:00.0 UTC"}}]}
从BATCH_JOB_EXECUTION_CONTEXT表中,使用方法JdbcJobExecutionDao.getJobExecution()
。
我知道春季批处理使用 xstream 1.3,但在我的 Pom 中,我有:
- 弹簧批次 2.1.9;
- xstream 1.4.1(继承自 smooks);
- 抛弃 1.3.3(继承自 cxf);
另外,我读到 xstream 1.3 不能与 jettison 1.3.3 一起正常工作,但使用 xstream 1.3(不包括 pom 中的 xstream 1.4.1)工作正常,而使用 xstream 1.4.1 或专业时,我发现以下异常:
Caused by: java.lang.InstantiationError: java.util.Map$Entry
at sun.reflect.GeneratedSerializationConstructorAccessor1.newInstance(Unknown Source) [:1.6.0_23]
at java.lang.reflect.Constructor.newInstance(Constructor.java:513) [rt.jar:1.6.0_23]
at com.thoughtworks.xstream.converters.reflection.Sun14ReflectionProvider.newInstance(Sun14ReflectionProvider.java:75) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.instantiateNewInstance(AbstractReflectionConverter.java:424) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:229) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.readItem(AbstractCollectionConverter.java:71) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.converters.collections.MapConverter.putCurrentEntryIntoMap(MapConverter.java:85) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.converters.collections.MapConverter.populateMap(MapConverter.java:77) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.converters.collections.MapConverter.populateMap(MapConverter.java:71) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.converters.collections.MapConverter.unmarshal(MapConverter.java:66) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1035) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1019) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:895) [xstream-1.4.1.jar:]
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:886) [xstream-1.4.1.jar:]
at org.springframework.batch.core.repository.dao.XStreamExecutionContextStringSerializer.deserialize(XStreamExecutionContextStringSerializer.java:48) [spring-batch-core-2.1.9.RELEASE.jar:]
at org.springframework.batch.core.repository.dao.JdbcExecutionContextDao$ExecutionContextRowMapper.mapRow(JdbcExecutionContextDao.java:222) [spring-batch-core-2.1.9.RELEASE.jar:]
at org.springframework.batch.core.repository.dao.JdbcExecutionContextDao$ExecutionContextRowMapper.mapRow(JdbcExecutionContextDao.java:215) [spring-batch-core-2.1.9.RELEASE.jar:]
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:92) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:60) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:649) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:587) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:637) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:666) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:674) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:714) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.jdbc.core.simple.SimpleJdbcTemplate.query(SimpleJdbcTemplate.java:202) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.jdbc.core.simple.SimpleJdbcTemplate.query(SimpleJdbcTemplate.java:209) [org.springframework.jdbc-3.2.1.RELEASE.jar:3.2.1.RELEASE]
at org.springframework.batch.core.repository.dao.JdbcExecutionContextDao.getExecutionContext(JdbcExecutionContextDao.java:106) [spring-batch-core-2.1.9.RELEASE.jar:]
1)我看过代码,我可以配置XStreamExecutionContextStringSerializer来设置reflectionProvider = null(这样就不会使用Provider)?
2)还有其他解决方案可以解决我的问题吗?
谢谢