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
弹出对话框：
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' I9 O+ U* B' a左上角的+号。选择python

弹出对话框：

& t5 t* R% l- N修改Name 为项目名称：   test_flask
      configuration：   
        第一个倒三角符号区，选择Module name      后面框中输入： flask
( u& i  N) X$ @0 z$ p0 V              接下来设置Parameters   run -h 0.0.0.0 -p 8080

) P# B1 c2 R0 P8 u8 T    第二个倒三角：  Environment
1 N% k8 t) I/ Z% J; f- p# E; \. a3 h; M           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   
                             Name 写上 FLASK_ENV    value值 development      
# \' y4 M0 u: |) m* r1 K            点击ok保存即可，返回上级页面：
          Python interpreter 选择我们安装的python解释器

          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
2 N, C3 P/ Q0 D/ w' I           勾选上下面两个对话框即可。  
7 @6 g3 n; d- i, V  点击ok保存即可

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因程序调不到python的flask插件：
      配置如下：
    点击左上角file选择settings  
弹出对话框，选择Project： test_flask
+ b$ L5 b1 m. k7 G$ m6 m       出现我们的env环境
     需要的包如下：
$ @) E/ k  h% H6 Z     Click         7.0
8 X5 P1 N2 a0 g6 V9 O  G5 E/ j     Flask        1.1.2
     Jinjia2      2.11.2
0 [. i4 P- J  S" s( e     MarkupSafe   2.0.0
( V8 s3 r6 X" `: t. X, V3 h( z8 P4 j     Werkzeug       1.0.0
; w9 r! D. T1 K, D/ y     itsdangerous   1.1.0
5 y( `) ]+ i0 K- O  V     pip                20.0.2
/ c4 f# ], T' {# }1 R0 P* j4 b' w' [     setuptools      45.2.0
/ r6 R7 `; B" F5 P  E  U  O    wheel            0.34.2
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; h) J/ o( u( v" a1 }6 b% C以上插件是当前测试成功的环境变量需要的包。
+ u3 Y. k, j, A' l/ \4 D5 W测试：

from 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__)

  a4 ?. g" i3 W# w#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
- z! {/ g0 @: j( n) W, p1 b. [( C* _# h@app.route('/')
def Hello_World():
9 q3 I1 t. m2 y. U* B8 C" h$ F- N     '''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
' ~% t  R$ ~& z7 b( z1 H! {3 U1 w# if __name__ == '__main__':
6 Z7 O/ `& X* R9 N4 U#    app.run()
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python.exe -m flask run -h 0.0.0.0 -p 80
0 y' v4 j: S7 r. s0 s. H6 b * Serving Flask app "app.py" (lazy loading)
+ g( L. f( v# W7 D) t * Environment: development
, b6 v) V: ?/ z: g# k * Debug mode: on
: l& u- @5 J8 X  n. E/ n  E * Restarting with stat
# @2 b7 n1 [* F; }" m * Debugger is active!
* Debugger PIN: 215-100-437
* Running on http://0.0.0.0:80/ (Press CTRL+C to quit)
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+ w/ O, C' _+ u1 y; ^浏览器访问结果：
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$ l+ s/ G1 W1 L5 }9 Ghttp://127.0.0.1/
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* o4 ^& s# J% k4 G3 J8 x; U1 @Hello_World,sucesess

测试正常。
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0 P. \4 c2 g) ^: w否则就报这个错误：
# [. [! e' V6 h. Q1 c$ T& cmodulenotfounderror: no module named 'app'
等报错。
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成功之后，不配置
我们需要配置  Working directory   ：  C:\Users\admin\Desktop\test_flask
+ T7 j( u! B$ Y           勾选上下面两个对话框即可。  
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7 ^( E$ A' s" s* H* Z4 W4 h9 a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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flask.cli.NoAppException: Could not import "app".
" _+ A' K$ ^  z0 x, |* i3 VTraceback (most recent call last)
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    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 240, in locate_app
# k: @# o& B% y' B, y
. Q" ~, C( G6 w, N  N    __import__(module_name)
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; c5 W3 j3 c- U7 B4 [    During handling of the above exception, another exception occurred:
# t' z0 Q3 a- N& g9 ]" [    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 338, in __call__
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    self._flush_bg_loading_exception()

  h1 O+ a, ^0 ], h    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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3 I  E2 W' G- [0 N4 A    reraise(*exc_info)

) `% C+ V. C6 Q( u    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\_compat.py", line 39, in reraise

/ a0 \; l) K5 ], ]% N    raise value

    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 314, in _load_app

: d0 k: W2 r- o1 v4 c    self._load_unlocked()
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    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 330, in _load_unlocked
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    self._app = rv = self.loader()
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    File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 388, in load_app

, q# \9 S0 A0 ~1 R* \. c9 T# k    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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3 F, |6 Z! p. L& p1 a    raise NoAppException('Could not import "{name}".'.format(name=module_name))

    flask.cli.NoAppException: Could not import "app".

The debugger caught an exception in your WSGI application. You can now look at the traceback which led to the error.
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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.
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" \3 g0 Q: i! m8 |' _2 NYou can execute arbitrary Python code in the stack frames and there are some extra helpers available for introspection:

" s$ j3 G+ ^: Q7 e' e    dump() shows all variables in the frame
1 u( u  r: O* E/ G+ w# {9 t    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
# e' d+ p" E8 q2 d$ G  V3 z. L * Serving Flask app "app.py" (lazy loading)
2 `9 ~, y4 W) N# m4 ?: i5 S * Environment: development
* Debug mode: on
* Restarting with stat
- A4 M7 F, u) ~& \0 V * Debugger is active!
; O9 T0 e2 l$ Q5 x1 u8 w0 M * Debugger PIN: 215-100-437
; u0 f( S$ T) w; M$ C * 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 -
" g( N$ \! @. ?Traceback (most recent call last):
8 s' u3 p- S! I  q- }  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 240, in locate_app
2 I0 I5 E" `9 K3 o( T  |+ X5 C    __import__(module_name)
0 w: h* @7 a( v8 _9 X; D( S" LModuleNotFoundError: No module named 'app'
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6 E5 K: G1 M1 iDuring handling of the above exception, another exception occurred:
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Traceback (most recent call last):
- X. n) i5 ^7 `& a  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 338, in __call__
/ H0 L" n- D4 _0 \- ]( w* [    self._flush_bg_loading_exception()
: r, ]8 K* z+ B0 {4 l  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 326, in _flush_bg_loading_exception
    reraise(*exc_info)
  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\_compat.py", line 39, in reraise
' b; L1 u6 D( [    raise value
  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 314, in _load_app
  Q( c, F' k7 Y- G4 H. V( s    self._load_unlocked()
  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 330, in _load_unlocked
- w, ^4 t6 [5 q9 d% {( B& A/ s    self._app = rv = self.loader()
0 `# N, {) ^7 f2 s$ O! P' ~  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 388, in load_app
    app = locate_app(self, import_name, name)
  File "C:\Users\admin\Desktop\test_flask\venv\Lib\site-packages\flask\cli.py", line 250, in locate_app
3 u) M: Q& Q! s3 X    raise NoAppException('Could not import "{name}".'.format(name=module_name))
. v9 A& A! ]+ ?1 m! Oflask.cli.NoAppException: Could not import "app".
: x* {" @! ^2 e+ n' P; |& u127.0.0.1 - - [28/May/2024 13:56:09] "GET /?__debugger__=yes&cmd=resource&f=style.css HTTP/1.1" 200 -
# t& T+ e2 I" I5 v  T127.0.0.1 - - [28/May/2024 13:56:09] "GET /?__debugger__=yes&cmd=resource&f=jquery.js HTTP/1.1" 200 -
127.0.0.1 - - [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 -
9 G; m( [. \4 h3 i127.0.0.1 - - [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
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    修改Working directory：   c:\Users\admin\Desktop\test_flask
" _; m6 p( t( p8 M2 Z9 J     勾选Add content roots to ...  两个都勾上。
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; B( D6 |, L8 g! ~% Z7 x保存配置。点击ok和Apply   应用

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3 S( A$ E: ?2 R2 Y. @; s重启服务：
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)
! n6 \; _, D% }+ u* i4 @7 B2 l * Environment: development
- ]! g/ l% B5 w. ~; d* o5 X * Debug mode: on
5 v  ~* ^; [! }) N- y5 I) ] * Restarting with stat
$ K( l. o3 o6 e! V3 L5 R * Debugger is active!
* Debugger PIN: 215-100-437
/ D7 q& E) q8 I * Running on http://0.0.0.0:8080/ (Press CTRL+C to quit)
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访问：
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% _$ }% ]5 M6 S& a  e2 Fhttp://127.0.0.1:8080
, ^) |* n& v# `Hello_World,sucesess
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. t* T# S8 U; x4 s服务端返回值：
7 ^& A$ S# \9 E7 V127.0.0.1 - - [28/May/2024 13:58:12] "GET / HTTP/1.1" 200 -
& _  @5 C5 u' S1 Y  o127.0.0.1 - - [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 -
5 m, i5 ?, }* X0 j+ L, M6 [  h127.0.0.1 - - [28/May/2024 14:04:06] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [28/May/2024 14:04:07] "GET / HTTP/1.1" 200 -
  K5 Q) t# O3 w8 y6 w, g127.0.0.1 - - [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
7 ~  y# ]- P+ h8 Z! X6 O, C * Restarting with stat
/ Q: y3 l4 {8 o& D# ?, W8 { * Debugger is active!
* Debugger PIN: 215-100-437
* Running on http://0.0.0.0:8080/ (Press CTRL+C to quit)
* {6 T2 b. t2 \/ X127.0.0.1 - - [28/May/2024 14:09:42] "GET /index HTTP/1.1" 200 -
127.0.0.1 - - [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 -
: z  `+ Z( L3 a5 `127.0.0.1 - - [28/May/2024 14:09:47] "GET /index HTTP/1.1" 200 -
2 T7 c, ]5 I$ Z. o7 Y% A$ l4 |127.0.0.1 - - [28/May/2024 14:09:49] "GET /index HTTP/1.1" 200 -
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