异常处理 

from flask import Flask, render_template, abort

app = Flask(__name__)


@app.errorhandler(404)
def errorhandler(e):
    return render_template("404.html")


@app.route("/user/<user_id>")
def get_user(user_id):
    if int(user_id) == 1:
        return render_template("user.html")
    else:
        abort(404)

if __name__ == '__main__':
    app.run(debug=True)


#404.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1>抱歉，你所查找的页面不存在</h1>
    <h2>你一定是在逗我吧</h2>
</body>
</html>

#user.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1>user</h1>
</body>
</html>

 

posted @ 2018-02-18 15:42  道高一尺  阅读(119)  评论(0)    收藏  举报