org.springframework.jdbc.UncategorizedSQLException: Hibernate operation: could not execute query; uncategorized SQLException for SQL [select acontent0_.id as id0_0_, hcontentsu1_.id as id53_1_, acontent0_.type as type0_0_, acontent0_.dept_id as dept3_0_0_, acontent0_.dn as dn0_0_, acontent0_.full_name as full5_0_0_, acontent0_.status as status0_0_, acontent0_.title as title0_0_, acontent0_.description as descript8_0_0_, acontent0_.security_level as security9_0_0_, acontent0_.author as author0_0_, acontent0_.author_name as author11_0_0_, acontent0_.publish_time as publish12_0_0_, acontent0_.start_time as start13_0_0_, acontent0_.modify_time as modify14_0_0_, acontent0_.urgency_mark as urgency15_0_0_, acontent0_.have_title_pic as have16_0_0_, acontent0_.sc_id as sc17_0_0_, acontent0_.sc_dn as sc18_0_0_, acontent0_.sc_full_name as sc19_0_0_, acontent0_.own_subject_dn as own20_0_0_, acontent0_.own_subject_id as own21_0_0_, acontent0_.ref_sub_id as ref22_0_0_, acontent0_.app_id as app23_0_0_, acontent0_.app_name as app24_0_0_, acontent0_.order_time as order25_0_0_, acontent0_.recycle_status as recycle26_0_0_, hcontentsu1_.content_id as content2_53_1_, hcontentsu1_.ref_id as ref3_53_1_, hcontentsu1_.ref_dn as ref4_53_1_, hcontentsu1_.status as status53_1_, hcontentsu1_.create_time as create6_53_1_ from a_content acontent0_, h_content_subject hcontentsu1_, h_subject hsubject2_ where hcontentsu1_.ref_id=hsubject2_.id and acontent0_.have_title_pic='2' and acontent0_.id=hcontentsu1_.content_id and hcontentsu1_.ref_dn='/1/62/163/164' and hcontentsu1_.status='3' and acontent0_.type<>'3' and acontent0_.type<>'4' and acontent0_.security_level='0' order by acontent0_.publish_time desc, acontent0_.order_time desc]; SQL state [S1000]; error code [0]; Packet for query is too large (1605 > 1024). You can change this value on the server by setting the max_allowed_packet' variable.; nested exception is com.mysql.jdbc.PacketTooBigException: Packet for query is too large (1605 > 1024). You can change this value on the server by setting the max_allowed_packet' variable.