Django妯″潡涔媕inja2妯＄増
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Jinja2锛氭槸 Python 涓嬩竴涓骞挎硾搴旂敤鐨勬ā鏉垮紩鎿庯紝鏄敱Python瀹炵幇鐨勬ā鏉胯瑷€锛屼粬鐨勮璁℃€濇兂鏉ユ簮浜?Django 鐨勬ā鏉垮紩鎿庯紝骞舵墿灞曚簡鍏惰娉曞拰涓€绯诲垪寮哄ぇ鐨勫姛鑳斤紝灏ゅ叾鏄疐lask妗嗘灦鍐呯疆鐨勬ā鏉胯瑷€銆?/span>
鐢变簬django榛樿妯℃澘寮曟搸鍔熻兘涓嶉綈鍏?閫熷害鎱紝鎵€浠ユ垜浠篃鍙互鍦―jango涓娇鐢╦inja2, jinja2瀹ｇО姣攄jango榛樿妯℃澘寮曟搸蹇?0-20鍊嶃€?/span>
Django涓绘祦鐨勭涓夋柟APP鍩烘湰涓婁篃閮藉悓鏃舵敮鎸丏jango榛樿妯℃澘鍙妀inja2锛屾墍浠ヨ鐢╦inja2涔熶笉浼氭湁澶氬皯闅滅銆?/span>
浣跨敤jinja2妯＄増娴佺▼锛?/h1>
1. 瀹夎绗笁鏂规ā鍧楋細
pip intall jinja2 -i 闀滃儚婧?/pre>
pip intall jinja2 -i 闀滃儚婧?/pre>
澶у鍦ㄥ畨瑁呮椂锛屾渶濂芥寚瀹氫竴涓嬮暅鍍忔簮锛屽惁鍒欏浗鍐呭澶珮鐖繃鏉ュ澶氬皯鏀堕兘浼氭湁鐐规參鐨勩€?/p>
2. 閰嶇疆jinja2锛?/h2>
銆€銆€2.1 鍦―jango椤圭洰涓垱寤簀inja2鏂囦欢锛屽苟鍒涘缓鐜瀵硅薄锛?/h3>
from jinja2 import Environment
def environment(**options):
env = Environment(**options)
return env
銆€銆€2.2 鍦―jango椤圭洰鐨勯厤缃枃浠朵腑閰嶇疆jinja2妯＄増淇℃伅锛?/h3>
from jinja2 import Environment def environment(**options): env = Environment(**options) return env
銆€銆€2.2 鍦―jango椤圭洰鐨勯厤缃枃浠朵腑閰嶇疆jinja2妯＄増淇℃伅锛?/h3>
娉ㄦ剰锛?/p>
銆€銆€閰嶇疆鏂囦欢鍗矰jango椤圭洰淇℃伅鐨勯厤缃枃浠讹紝涓€鑸懡鍚嶄负setting.py銆乨ev.py銆乸rop.py銆?/p>
銆€銆€鍦ㄩ厤缃枃浠朵腑閰嶇疆jinja2妯＄増鏃讹紝闇€瑕佸厛灏咲jango閰嶇疆鏂囦欢涓嚜甯︾殑妯＄増閰嶇疆淇℃伅娉ㄩ噴鎴栧垹闄ゃ€?/p>
TEMPLATES = [ { 鈥?/span>BACKEND鈥?/span>: 鈥?/span>django.template.backends.jinja2.Jinja2鈥?/span>,#淇敼1 鈥?/span>DIRS鈥?/span>: [os.path.join(BASE_DIR, 鈥?/span>templates鈥?/span>)], 鈥?/span>APP_DIRS鈥?/span>:True, 鈥?/span>OPTIONS鈥?/span>:{ 鈥?/span>environment鈥?/span>: 鈥?/span>jinja2_env.environment鈥?/span>,# 淇敼2 鈥?/span>context_processors鈥?/span>:[ 鈥?/span>django.template.context_processors.debug鈥?/span>, 鈥?/span>django.template.context_processors.request鈥?/span>, 鈥?/span>django.contrib.auth.context_processors.auth鈥?/span>, 鈥?/span>django.contrib.messages.context_processors.messages鈥?/span>, ], }, }, ]
3. 浣跨敤jinja2娓叉煋html妯＄増锛?/h2>
銆€銆€3.1 缂栧啓瑙嗗浘锛岃繑鍥瀓inja2妯℃澘锛屽苟浼犻€掓暟鎹繘琛屾覆鏌撱€?/h3>
class IndexView(View):
def get(self, request):
context = {
鈥?/span>key鈥?/span>:鈥?/span>value鈥?/span>,
鈥?/span>msg鈥?/span>:鈥?/span>Hello Jinja2鈥?/span>
}
return render(request, 鈥?/span>index.html鈥?/span>, context)
銆€銆€3.2 鍦℉TML妯＄増涓帴鏀跺悗绔紶閫掔殑jinja2璇硶鐨勬暟鎹?/h3>
{% if key%}
<span class="error_tip">{{ key}}</span>
{% endif %}
{% if msg%}
<span class="error_tip">{{ msg}}</span>
{% endif %}
4. jinja2鐨勮繃婊ゅ櫒锛?/h2>
class IndexView(View): def get(self, request): context = { 鈥?/span>key鈥?/span>:鈥?/span>value鈥?/span>, 鈥?/span>msg鈥?/span>:鈥?/span>Hello Jinja2鈥?/span> } return render(request, 鈥?/span>index.html鈥?/span>, context)
銆€銆€3.2 鍦℉TML妯＄増涓帴鏀跺悗绔紶閫掔殑jinja2璇硶鐨勬暟鎹?/h3>
{% if key%}
<span class="error_tip">{{ key}}</span>
{% endif %}
{% if msg%}
<span class="error_tip">{{ msg}}</span>
{% endif %}
4. jinja2鐨勮繃婊ゅ櫒锛?/h2>
{% if key%}
<span class="error_tip">{{ key}}</span>
{% endif %}
{% if msg%}
<span class="error_tip">{{ msg}}</span>
{% endif %}
5. 鑷畾涔塲inja2杩囨护鍣?/h2>
鍦╦inja2鐜鏂囦欢涓紝杩涜鑷畾涔塲inja2杩囨护鍣細
from jinja2 import Environment def environment(**options): env = Environment(**options) # 2.灏嗚嚜瀹氫箟鐨勮繃婊ゅ櫒娣诲姞鍒?鐜涓?/span> env.filters[鈥?/span>do_listreverse鈥?/span>] = do_listreverse return env # 1.鑷畾涔夎繃婊ゅ櫒 def do_listreverse(li): if li == "B": return "鍝堝搱"
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