Spring随笔3

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时间内容 10.28 单元测试错误总结

1、applicationContext.xml中引用Spring多个Schema空间的格式定义文件的错误

原代码文件（部分）

xsi:schemaLocation="http://www.springframework.org/schema/beans                    http://www.springframework.org/schema/beans/spring-beans-4.2.1.xsd                    http://www.springframework.org/schema/context                    http://www.springframework.org/schema/context/spring-context-4.2.1.xsd

修改后的代码文件

xsi:schemaLocation="http://www.springframework.org/schema/beans                    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd                    http://www.springframework.org/schema/context                    http://www.springframework.org/schema/context/spring-context-4.0.xsd

http://www.springframework.org/schema/beans/spring-beans-4.2.1.xsd声明空间不能被找到，故而造成了错误。

附一个完整的Spring配置文件：（感谢老司机high_great.cheng的帮助）

<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"xmlns:task="http://www.springframework.org/schema/task" xmlns:p="http://www.springframework.org/schema/p"xmlns:jee="http://www.springframework.org/schema/jee" xmlns:util="http://www.springframework.org/schema/util"xsi:schemaLocation="http://www.springframework.org/schema/beans                    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd                    http://www.springframework.org/schema/context                    http://www.springframework.org/schema/context/spring-context-4.0.xsd                    http://www.springframework.org/schema/tx                    http://www.springframework.org/schema/tx/spring-tx-4.0.xsd                    http://www.springframework.org/schema/aop                    http://www.springframework.org/schema/aop/spring-aop-4.0.xsd                    http://www.springframework.org/schema/task                    http://www.springframework.org/schema/task/spring-task-4.0.xsd                    http://www.springframework.org/schema/jee                    http://www.springframework.org/schema/jee/spring-jee-4.0.xsd                    http://www.springframework.org/schema/util                    http://www.springframework.org/schema/util/spring-util-4.0.xsd">

2、jar包缺失

在引入jar包时缺少了aopalliance-1.0.jar和aspectjweaver-1.8.7.jar等两个jar包

3、SQL语句错误

在编写代码时，由于SQL语句过长，于是用字符串的拼接方式来完成SQL语句的书写，但是在“+”前后却忘记了空格，出现了类似下面的错误：

正确写法：

SELECT * FROM tablename where seclect_name ="name";

错误写法：

"SELECT * FROM tablename"+"where seclect_name =‘name’;"拼接完成后SELECT * FROM tablenamewhere seclect_name ="name";

4、未知bug

删除错误句，重新写一下就好了

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