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nested exception is java.sql.SQLException: 无效的列索引
Exception occurred during processing request: PreparedStatementCallback; invalid ResultSet access fo
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5
一个空指针异常,代码如下，打了断点，一到“TOPICID”那里（在下方注释4那里）就抛异常-_-||
/**导出到excel * @param * @throws Exception */ @RequestMapping(value="/excel") public ModelAndView expo
