傳統(tǒng)的Java異常-捕獲機(jī)制已不能滿足當(dāng)今大型企業(yè)級(jí)開發(fā)的要求。本文對(duì)Struts2提供的異常處理機(jī)制進(jìn)行了研究和擴(kuò)展，提出將檢查型（Checked）異常轉(zhuǎn)化為非檢查型
（Unchecked）異常進(jìn)行捕獲的思想，通過采用AOP攔截器技術(shù)構(gòu)造一種高效的異常處理機(jī)制，提高了代碼的可讀性，程序的執(zhí)行速度和可維護(hù)性，減少了同類代碼的重復(fù)使用，避免了由于過量使用檢查型（Checked）異常引起的程序結(jié)構(gòu)混亂、代碼邏輯復(fù)雜等缺陷。
關(guān)鍵詞：Java; struts2; 運(yùn)行時(shí)異常; 檢查/非檢查性異常; AOP;
Abstract: This paper describes the study and extension in the exception handling mechanism
which is provides by Struts2, since the traditional Java exception try-catch mechanism has been unable to satisfy today's large-scale enterprise development. The paper proposes a capturing thought that transforms the inspected (Checked) exception to the non-inspected (Unchecked) exception. Using the AOP intercept technology to construct a kind of highly effective, unification exception handling mechanism, to enhance the code readability greatly, the performance and the maintainability of the program , thus reduce the similar codes redundant used, and avoid the excessive using inspection (Checked) exception causing program's chaotic structure, code's complex logic ,etc.
Key words: Java; struts2; runtime exception; checked/unchecked exception; AOP;