pycharm调试flask自动启动程序的配置app.py程序

admin

首先引入项目找到右上角 test_flask >  Edit Configurations
) m  F( y* M# E- A) `  U弹出对话框：
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; _* v( a1 t  N1 N' S& S左上角的+号。选择python

! _' m8 q9 I, a% k4 |弹出对话框：

4 {" h/ i6 v0 e" B( @3 G修改Name 为项目名称：   test_flask
( ?: D$ o4 i+ k! @% S1 n      configuration：   
9 B( H9 j& C- ^) N        第一个倒三角符号区，选择Module name      后面框中输入： flask
              接下来设置Parameters   run -h 0.0.0.0 -p 8080

    第二个倒三角：  Environment
           Environment variables:    后面的像test的文件的图标，点击配置，弹出对话框：
                            Name  写上FLASK_APP    value值 app.py   
) P9 H7 B& o- M2 W. g. s. d# s5 T                             Name 写上 FLASK_ENV    value值 development      
! C& a+ g0 m" C! n( d# k            点击ok保存即可，返回上级页面：
1 p$ R! }: h; g0 r. `* k          Python interpreter 选择我们安装的python解释器
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          为了防止后面访问出现问题  我们需要配置  Working directory   ：  C:\Users\admin\Desktop\test_flask
           勾选上下面两个对话框即可。  
' e8 ^! e/ ?- I* _# n/ U4 m  点击ok保存即可
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因程序调不到python的flask插件：
6 h! U; }$ l# a* c      配置如下：
    点击左上角file选择settings  
7 H0 h- }* x% `  i) i% G1 |弹出对话框，选择Project： test_flask
       出现我们的env环境
2 l2 i: I3 `. \     需要的包如下：
/ R+ ]3 E0 |, |/ D" w     Click         7.0
     Flask        1.1.2
     Jinjia2      2.11.2
7 g5 `4 I5 c! m; \# j& f     MarkupSafe   2.0.0
     Werkzeug       1.0.0
! j# p) H3 X6 i     itsdangerous   1.1.0
' D7 F$ W1 T3 B, R     pip                20.0.2
8 o( T2 k2 f' {1 s5 t( |) Z     setuptools      45.2.0
' D( v% V+ v/ ~    wheel            0.34.2

, Z/ ?/ f7 T! w1 i2 z以上插件是当前测试成功的环境变量需要的包。
* R, z- q' {6 T: e9 J! u5 Q* z测试：

* e) c* h# I( _: Y4 C2 kfrom flask import Flask
# 用当前脚本名称实例化Flask对象，方便flask从该脚本文件中获取需要的内容
app = Flask(__name__)
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#methods参数用于指定允许的请求格式
#常规输入url的访问就是get方法
@app.route('/')
def Hello_World():
2 A3 S* F% @" }2 o/ C     '''视图函数'''
     return 'Hello_World,sucesess'
#注意路由路径不要重名，映射的视图函数也不要重名
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###v1.0之后的版本，不推荐的写法
* g  s) d* d+ q) V# Q1 d# if __name__ == '__main__':
#    app.run()
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python.exe -m flask run -h 0.0.0.0 -p 80
! ~; |( I5 e# W& `7 J' w5 D& T, S * Serving Flask app "app.py" (lazy loading)
8 \% `/ U8 }4 N' g3 U" [ * Environment: development
5 p9 _7 k" C# B3 L' L * Debug mode: on
* Restarting with stat
) G8 p5 Z' g$ @; M% w8 ^ * Debugger is active!
9 J9 }& K# M0 R4 ~2 ~ * Debugger PIN: 215-100-437
- m5 O7 {6 y( j$ t3 o- [$ U * Running on http://0.0.0.0:80/ (Press CTRL+C to quit)
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浏览器访问结果：
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- i7 I( p$ q  m( \* M3 {  Khttp://127.0.0.1/
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8 r9 n2 z, m, d+ P  bHello_World,sucesess

测试正常。


否则就报这个错误：
7 b# y/ G  q8 G. Gmodulenotfounderror: no module named 'app'
. R  ]& g/ z8 W/ B5 s# ?等报错。
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成功之后，不配置
2 b1 R% ^2 V: F( R! b/ d/ N1 n 我们需要配置  Working directory   ：  C:\Users\admin\Desktop\test_flask
           勾选上下面两个对话框即可。  
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这个也可以成功了。是因为引入了该变量了。

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admin

访问报错信息：
flask.cli.NoAppException
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$ r/ Y* u5 ^5 u" q& u2 Gflask.cli.NoAppException: Could not import "app".
Traceback (most recent call last)

    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 240, in locate_app
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+ i+ ?1 D3 J  J" r/ \    __import__(module_name)

; a4 p! g4 a6 k% \$ K    During handling of the above exception, another exception occurred:
7 ^3 U0 }5 p8 m; o. P1 B9 H1 l- Z    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 338, in __call__

$ D. @% w  ~% l. i3 Z    self._flush_bg_loading_exception()

) \5 R# s; c# w1 h7 s: z    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 326, in _flush_bg_loading_exception
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, C; [0 p3 a& r2 c5 T    reraise(*exc_info)

3 B* |) b3 Q0 q, u3 _/ q3 e    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\_compat.py", line 39, in reraise
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    raise value
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$ Y' R5 P6 H0 J  `& [! Q    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 314, in _load_app

3 s0 X. {0 u$ q    self._load_unlocked()
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9 P4 O5 W) }- l    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 330, in _load_unlocked
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! Y% E' q( p( ~$ p& }4 r( |0 k1 q    self._app = rv = self.loader()
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& |5 U3 k. {0 @: A    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 388, in load_app
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4 _. [' g' q; ^; H    app = locate_app(self, import_name, name)
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    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 250, in locate_app
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    raise NoAppException('Could not import "{name}".'.format(name=module_name))
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% r' s$ m% w0 C+ W    flask.cli.NoAppException: Could not import "app".
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The debugger caught an exception in your WSGI application. You can now look at the traceback which led to the error.

/ H! M. ]- t0 Y' E  ?5 _To switch between the interactive traceback and the plaintext one, you can click on the "Traceback" headline. From the text traceback you can also create a paste of it. For code execution mouse-over the frame you want to debug and click on the console icon on the right side.

You can execute arbitrary Python code in the stack frames and there are some extra helpers available for introspection:
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  h  h/ j! v( [; B    dump() shows all variables in the frame
    dump(obj) dumps all that's known about the object
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admin

C:\Users\admin\Desktop\test_flask\venv\Scripts\python.exe -m flask run -h 0.0.0.0 -p 8080
* Serving Flask app "app.py" (lazy loading)
4 O7 b' x+ M, ?- s. H2 v! D * Environment: development
) G& N+ P3 U' a' z1 W* a * Debug mode: on
- M$ h. f: Z, y, {& r9 t * Restarting with stat
2 y- H; e) W! @5 `0 g' _! y3 b * Debugger is active!
* Debugger PIN: 215-100-437
* Running on http://0.0.0.0:8080/ (Press CTRL+C to quit)
127.0.0.1 - - [28/May/2024 13:56:09] "GET / HTTP/1.1" 500 -
& P! D" \+ x( X$ iTraceback (most recent call last):
  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 240, in locate_app
    __import__(module_name)
' k' q: V* k) [" ]9 bModuleNotFoundError: No module named 'app'

During handling of the above exception, another exception occurred:
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* x) D. h3 V2 q% K* C) b5 l1 mTraceback (most recent call last):
  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 338, in __call__
5 U2 v0 U+ k, H: V  E5 @2 C    self._flush_bg_loading_exception()
  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 326, in _flush_bg_loading_exception
6 Y: Y% j; I9 m- e- K2 p% a  i    reraise(*exc_info)
1 M2 ^# w( r! W) h& q" X. V5 A7 Q  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\_compat.py", line 39, in reraise
    raise value
  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 314, in _load_app
    self._load_unlocked()
  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 330, in _load_unlocked
    self._app = rv = self.loader()
( R5 G: I" l, P1 ?0 p3 C/ k  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 388, in load_app
. g- R* e& R# C" D" C! G    app = locate_app(self, import_name, name)
' y- D5 |/ P* }9 P' J7 S  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 250, in locate_app
    raise NoAppException('Could not import "{name}".'.format(name=module_name))
flask.cli.NoAppException: Could not import "app".
& H$ N% R2 o# p0 h8 r127.0.0.1 - - [28/May/2024 13:56:09] "GET /?__debugger__=yes&cmd=resource&f=style.css HTTP/1.1" 200 -
" h4 M" T0 Q- i, u& J127.0.0.1 - - [28/May/2024 13:56:09] "GET /?__debugger__=yes&cmd=resource&f=jquery.js HTTP/1.1" 200 -
  u: l' y6 a' o9 Z. w127.0.0.1 - - [28/May/2024 13:56:09] "GET /?__debugger__=yes&cmd=resource&f=debugger.js HTTP/1.1" 200 -
127.0.0.1 - - [28/May/2024 13:56:09] "GET /?__debugger__=yes&cmd=resource&f=console.png HTTP/1.1" 200 -
# {$ |0 x0 Z2 v+ x7 E& A2 ?127.0.0.1 - - [28/May/2024 13:56:09] "GET /?__debugger__=yes&cmd=resource&f=ubuntu.ttf HTTP/1.1" 200 -
127.0.0.1 - - [28/May/2024 13:56:09] "GET /?__debugger__=yes&cmd=resource&f=console.png HTTP/1.1" 200 -

admin

修改 Run/Debug Configuration  配置

    修改Working directory：   c:\Users\admin\Desktop\test_flask
     勾选Add content roots to ...  两个都勾上。

保存配置。点击ok和Apply   应用
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重启服务：
* y2 ^/ \( q( v6 aC:\Users\admin\Desktop\test_flask\venv\Scripts\python.exe -m flask run -h 0.0.0.0 -p 8080
4 Z" h; I# e8 c% r * Serving Flask app "app.py" (lazy loading)
  T2 O8 v% ~/ ]  J% N& V * Environment: development
! F8 y/ b2 A. e2 p7 ?& ?7 P! o * Debug mode: on
' h5 i; e6 x' j. l8 h * Restarting with stat
, F$ i& V0 u! }4 E) W * Debugger is active!
* Debugger PIN: 215-100-437
: C  C9 x: M8 l+ i# w- T * Running on http://0.0.0.0:8080/ (Press CTRL+C to quit)

访问：

) @; L2 \+ v! o4 b: e( D& S* G& Whttp://127.0.0.1:8080
* N4 m  V* n7 D- ]: pHello_World,sucesess

6 c3 a: E0 a1 s服务端返回值：
( ~8 U7 f$ y& p6 \6 h* V7 c6 F" `; Q127.0.0.1 - - [28/May/2024 13:58:12] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [28/May/2024 13:58:12] "GET /favicon.ico HTTP/1.1" 404 -
127.0.0.1 - - [28/May/2024 14:04:05] "GET / HTTP/1.1" 200 -
* v2 {0 u' A7 [1 D' t4 Z# L( T/ Q6 P127.0.0.1 - - [28/May/2024 14:04:06] "GET / HTTP/1.1" 200 -
: h: L+ B1 X9 }: E127.0.0.1 - - [28/May/2024 14:04:07] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [28/May/2024 14:04:07] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [28/May/2024 14:04:07] "GET / HTTP/1.1" 200 -

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admin

* Detected change in 'C:\\Users\\admin\\Desktop\\test_flask\\app.py', reloading
* Restarting with stat
* Debugger is active!
* Debugger PIN: 215-100-437
* Running on http://0.0.0.0:8080/ (Press CTRL+C to quit)
127.0.0.1 - - [28/May/2024 14:09:42] "GET /index HTTP/1.1" 200 -
) W( x" B( y/ @2 Y. z- K127.0.0.1 - - [28/May/2024 14:09:45] "GET /index HTTP/1.1" 200 -
127.0.0.1 - - [28/May/2024 14:09:47] "GET /index HTTP/1.1" 200 -
127.0.0.1 - - [28/May/2024 14:09:47] "GET /index HTTP/1.1" 200 -
127.0.0.1 - - [28/May/2024 14:09:49] "GET /index HTTP/1.1" 200 -
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