SqlSession [@4529fa91]

控制台日志如下

DEBUG - Creating a new SqlSession
DEBUG - SqlSession [@4529fa91] was not registered for synchronization because synchronization is not active
DEBUG - Closing non transactional SqlSession [@4529fa91]

并没有看出错误原因是什么，可以断定是SQL语句那里的，随即在SQL语句上加上try catch查看

try {
    (".addSheet2", body);
} catch (Exception e) {
    ();
}

catch查看异常如下

: nested exception is : Error evaluating expression 'createDate != null''. Cause: : Malformed OGNL expression: createDate != null' [: Lexical error at line 1, column 20.  Encountered: <EOF> after : ""]

检查果然这里有问题

<if test="createDate != null'">#{createDate},</if>