java，idea，maven的三个使用问题

Question

1.我使用的jdk是1.7，但是我的maven项目无论如何都会对@Override报错：

我设置了project level和preference中的complie level都没有用，maven的配置文件什么都没有写。。这种情况该怎么处理？配置如下：

2.为什么我的idea一创建或者打开项目就会提示这个。。。该怎么处理？

拜托大家了

Answer 1

Git is detected, but the root folder of Git is not told to Idea. This should be the problem. As for the error reported by Override, take a look at what error is reported.

Answer 2

Overwrite error is usually caused by the following rewriting error

Answer 3

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.3</version>
    <configuration>
        <source>1.7</source>
        <target>1.7</target>
    </configuration>
</plugin>

Try using the Maven compile pluginspecified version.

Answer 4

Set the maven compilation version. Otherwise, your maven compiled version will be changed to 1.5 every time

Reference:
http://blog.csdn.net/high2011...