Question

我正在使用Spring Boot和Hiberna创建Spring批处理作业，但是在插入过程中遇到问题。这是代码的相关部分：

@Bean
    public JdbcBatchItemWriter<OphthalmicLens> writer(DataSource dataSource) throws SQLException {
        return new JdbcBatchItemWriterBuilder<OphthalmicLens>()
                .itemSqlParameterSourceProvider(new BeanPropertyItemSqlParameterSourceProvider<>())
                .sql("INSERT INTO OphthalmicLens (`createdBy`,`createdDate`,`lastModifiedBy`,`lastModifiedDate`,`sid`,`version`,`manufacturer`,`manufacturerCode`,`name`,`sku`,`upc`,`cylinder`,`design`,`diameter`,`index`,`material`,`source`,`sphere`,`type`) VALUES (:createdBy,NOW(),:lastModifiedBy,NOW(),UUID(),:version,:manufacturer,:manufacturerCode,:name,:sku,:upc,:cylinder,:design,:diameter,:index,:material,:source,:sphere,:type)")
                .dataSource(dataSource).build();
    }

属性设计是一个枚举：

public enum OphthalmicDesign {
    SPHERIC, ASPHERIC, ATORIC, BIASPHERIC
}

在我的OphthalmicLens bean中使用的

如下：

@NotNull
    @Enumerated(EnumType.STRING)
    @Column(nullable = false)
    private OphthalmicDesign design = OphthalmicDesign.SPHERIC;

我正在使用Mysql 5.7，并且数据库中的该列按预期的那样是mappes作为VARCHAR（255）。

我运行作业时遇到此错误：

Caused by: java.sql.BatchUpdateException: Incorrect string value: '\xAC\xED\x00\x05~r...' for column 'design' at row 1
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_172]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_172]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_172]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_172]
    at com.mysql.cj.util.Util.handleNewInstance(Util.java:210) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.util.Util.getInstance(Util.java:185) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.util.Util.getInstance(Util.java:192) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.exceptions.SQLError.createBatchUpdateException(SQLError.java:218) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ClientPreparedStatement.executeBatchedInserts(ClientPreparedStatement.java:768) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.ClientPreparedStatement.executeBatchInternal(ClientPreparedStatement.java:444) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.mysql.cj.jdbc.StatementImpl.executeBatch(StatementImpl.java:839) ~[mysql-connector-java-8.0.11.jar:8.0.11]
    at com.zaxxer.hikari.pool.ProxyStatement.executeBatch(ProxyStatement.java:128) ~[HikariCP-2.7.9.jar:?]

我了解问题是枚举未转换为字符串。我可以使用其他BeanPropertyItemSqlParameterSourceProvider来解决问题，但我认为这会过分杀人，并且会失去Spring设施的优势。

即使我使用Spring Batch，您是否有提示告诉Spring / Hibernate自动将该枚举转换为String？

Spring批量导入期间将枚举转换为字符串失败

0 个答案: