引言:freemaker在特定的spring以及jdk下的问题解决路径. 环境描述 spring 3.1.1, jdk1.8u80, freemake 2.3.19 错误信息描述: 严重: Exception sending context initialized event to listener instance of class org.jeecgframework.web.system.listener.OnlineListener org.springframework.beans.f…

问题:Could not get JDBC Connection; nested exception is java.sql.SQLException: com.mchange.v2.c3p0.ComboPooledDataSource [ java.beans.IntrospectionException: java.lang.reflect.InvocationTargetException [numThreadsAwaitingCheckoutDefaultUser] ] has been…

修改陆喜恒. Hadoop实战(第2版)5.3排序的代码时遇到IO异常. 环境:Mac OS X 10.9.5, IntelliJ IDEA 13.1.5, Hadoop 1.2.1 异常具体信息如下 14/10/06 03:08:51 INFO mapred.JobClient: Task Id : attempt_201410021756_0043_m_000000_0, Status : FAILED java.io.IOException: Type mismatch in value…

Connection.prepareStatement()函数出错,提示: Type mismatch: cannot convert from java.sql.PreparedStatement to com.mysql.jdbc.PreparedStatement 这是因为引入的包不对头, import com.mysql.jdbc.PreparedStatement; import com.mysql.jdbc.Statement; 引入正确的包就没有这个错误了. import java…

下面是我的报错信息 at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Na…

java.lang.Error: Unresolved compilation problems:   Syntax error on token "return", delete this token  Type mismatch: cannot convert from Init to String Dubbo 在调用服务时候报的错误! 那么问题来了.这什么错? ? 英语不好.     Type mismatch: cannot convert from Init to Strin…

按照官网在写mybatis-plus的自动填充功能一直报错,发现官网的解说不全,数据库是datetime类型,java程序又是date,类型不匹配 org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: Could not set property 'updateDate' of 'class com.example.pojo.…

问题描述: 一个非常简单的spring项目,用静态工厂方法配置bean实例.项目的目录结构如下: 代码如下: Car.java package com.tt.spring.beans.factory; public class Car { private String brand; private double price; public String getBrand() { return brand; } public void setBrand(String brand) { this.b…

完整的错误信息: Description Resource Path Location TypeType mismatch: cannot convert from Enumeration<String> to Enumeration<Object> ResponseHeaderFilter.java /dwz-java/src/dwz/common/util line 46 Java Problem 解决的方法: watermark/2/text/aHR0cDovL2Jsb2cu…

一个问题:向comment表添加记录时,报错, 无法设置值. reflection.ReflectionException: Could not set property 'id' of 'class com.awen.entity.Comment' with value '1246084348583632898' Cause: java.lang.IllegalArgumentException: argument type mismatch 我的comment表中设计的id为char(19)…