jdbctemplate

问题 I am using Spring JDBCTemplate and BatchPreparedStatementSetter to perform batch Update on a postgreSql DB. I wanted to capture the erroneous records and after going through some posts, found out that catching the BatchUpdateException and then looking for 'Statement.EXECUTE_FAILED' could help me identify the records that were erroneous. However, when I implement it as below, I never get a batchUpdate exception. Here I am trying to enter the same id "120" repeatedly so that I get a unique

问题 I am trying to update thousands of rows in a table using batchUpdate. My requirements are: 1) Assume there are 1000 records in a batch. Record No 235 caused an error. How do I find out which record caused the error. 2) Assume that record 600 did not result in an update (reason could be no record matching the where clause). How can I find out records that did not result in an update. 3) In both scenarios above how can I continue processing the remaining records. 回答1: The only solution after

问题 My Project is on spring-boot-starter-parent - "1.5.9.RELEASE" and I'm migrating it to spring-boot-starter-parent - "2.3.1.RELEASE". This is multi-tenant env application, where one database will have multiple schemas, and based on the tenant-id, execution switches between schemas. I had achieved this schema switching using SimpleNativeJdbcExtractor but in the latest Springboot version NativeJdbcExtractor is no longer available. Code snippet for the existing implementation: @Bean @Scope( value

问题 My Project is on spring-boot-starter-parent - "1.5.9.RELEASE" and I'm migrating it to spring-boot-starter-parent - "2.3.1.RELEASE". This is multi-tenant env application, where one database will have multiple schemas, and based on the tenant-id, execution switches between schemas. I had achieved this schema switching using SimpleNativeJdbcExtractor but in the latest Springboot version NativeJdbcExtractor is no longer available. Code snippet for the existing implementation: @Bean @Scope( value

问题 My Project is on spring-boot-starter-parent - "1.5.9.RELEASE" and I'm migrating it to spring-boot-starter-parent - "2.3.1.RELEASE". This is multi-tenant env application, where one database will have multiple schemas, and based on the tenant-id, execution switches between schemas. I had achieved this schema switching using SimpleNativeJdbcExtractor but in the latest Springboot version NativeJdbcExtractor is no longer available. Code snippet for the existing implementation: @Bean @Scope( value

问题 My Project is on spring-boot-starter-parent - "1.5.9.RELEASE" and I'm migrating it to spring-boot-starter-parent - "2.3.1.RELEASE". This is multi-tenant env application, where one database will have multiple schemas, and based on the tenant-id, execution switches between schemas. I had achieved this schema switching using SimpleNativeJdbcExtractor but in the latest Springboot version NativeJdbcExtractor is no longer available. Code snippet for the existing implementation: @Bean @Scope( value

问题 My Project is on spring-boot-starter-parent - "1.5.9.RELEASE" and I'm migrating it to spring-boot-starter-parent - "2.3.1.RELEASE". This is multi-tenant env application, where one database will have multiple schemas, and based on the tenant-id, execution switches between schemas. I had achieved this schema switching using SimpleNativeJdbcExtractor but in the latest Springboot version NativeJdbcExtractor is no longer available. Code snippet for the existing implementation: @Bean @Scope( value

问题 I am trying to save data to database with Spring's JdbcTemplate, but I get this error message. If I do it normal way with PreparedStatements it's working. My CarDAO class: @Repository @Service public class CarDAO implements CarDAOService { private JdbcTemplate jdbcTemplate; public JdbcTemplate getJdbcTemplate() { return jdbcTemplate; } public void setJdbcTemplate(JdbcTemplate jdbcTemplate) { this.jdbcTemplate = jdbcTemplate; } public void saveCarToDB(CarBean carbean) { final String sql =

问题 I am trying to save data to database with Spring's JdbcTemplate, but I get this error message. If I do it normal way with PreparedStatements it's working. My CarDAO class: @Repository @Service public class CarDAO implements CarDAOService { private JdbcTemplate jdbcTemplate; public JdbcTemplate getJdbcTemplate() { return jdbcTemplate; } public void setJdbcTemplate(JdbcTemplate jdbcTemplate) { this.jdbcTemplate = jdbcTemplate; } public void saveCarToDB(CarBean carbean) { final String sql =

问题 I wanted to do batch updates using Springs JDBC template in postgre. However, I am curious that do I really need to use the jdbcTemplate.BatchUpdate() calls. I read in several places that they are slower if not implemented correctly. Will adding a @Transactional on the method that inserts in a loop achieve the same functionality of batching the updates? If the below method that inserts one record at a time, is called from a loop which is in a transactional as shown, will this cause updates to