No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK

在eclipse中使用maven進行compile時，出現了「No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK」錯誤，從表面意思我們大概能看出，其實就是使用了JRE而不是JDK。  修改一下Eclipse配置就好了，如下圖：   畫紅線的地方其實是我修改後，

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