用谷歌瀏覽器打開我的ajax小程序，發現錯誤：Origin http://localhost:8080 is not allowed by Access-Control-Allow-Origin.
根據網上說是跨域問題，我想可能是因為我在瀏覽器上打的地址是localhost，在ajax請求中用的地址是127.0.0.1,所以我將瀏覽器上的地址改為127.0.0.1，就沒有錯誤了。
或者將ajax中的請求地址設置為相對路徑，也沒有錯誤
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