解決javax.servlet.jsp.JspException cannot be resolved to a type
使用eclipse-juno新建的maven專案，使用過程中無任何問題，但是換了eclipse-luna版本後，匯入同樣的maven專案，則報javax.servlet.jsp.JspException cannot be resolved to a type錯誤；這可能是新版本eclipse的bug導致。
在網上找的解決方案是在你的專案中加入jsp-api.jar和servlet-api.jar包，這兩個包來源於tomcat的libs目錄中，但是會出現一個問題，專案打包釋出的時候也會將這兩個jar打包出去，這時候釋出到tomcat中後tomcat可能啟動失敗，同時你的jar包可能和tomcat中的jar版本不一致等情況。
解決方式：右鍵你的專案--properties選擇Targeted Runtimes，選擇你的執行環境，我選擇Apache Tomcat v7.0，Apply--OK。
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