Question

严重: Servlet.service() for servlet [springMVC] in context

严重: Servlet.service() for servlet [springMVC] in context with path [/end] threw exception [Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLNonTransientConnectionException: Cannot load connection class because of underlying exception: com.mysql.cj.exceptions.WrongArgumentException: Failed to parse the host:port pair 'xx.xx.xx.xx:xx'.] with root cause
java.lang.NumberFormatException: For input string: "xx"这个报错,数据库链接不上

Answer 1

返回的字符串不是标准的json结构或者把空结果转换json引起的错误