json数据转换

app/service/report_service.py

@@ -18,6 +18,7 @@ from app.api.engine import TAMP_SQL, tamp_diagnose_app_engine, template_folder,
     pdf_folder
 from app.model.tamp_diagnose_app import HoldReport, HoldDiagnoseReport, PeriodicReport, Customer, ReportView, \
     FundReportManange
+from app.utils.format_transfer import npEncoder
 from app.utils.jinjia2html_v2 import DataIntegrate
 from app.utils.celery import save_pdf
 
@@ -234,7 +235,7 @@ def make_report(args):
     try:
         dt = DataIntegrate(ifa_id=ifa_id, customer_id=customer_id, pdf_name=pdf_name, type=type)
         report_data = dt.get_template_data(default_template=default_template)
-        report_data = json.dumps(report_data).replace(template_folder, temp_img_save_folder)
+        report_data = json.dumps(report_data, cls=npEncoder, ensure_ascii=False).replace(template_folder, temp_img_save_folder)
         report_data = json.loads(report_data)
         dt.render_data(data=report_data)
     except:

app/utils/format_transfer.py

+# -*- encoding: utf-8 -*-
+# -----------------------------------------------------------------------------
+# @File Name  : format_transfer.py
+# @Time       : 2021/1/6 下午7:58
+# @Author     : X. Peng
+# @Email      : acepengxiong@163.com
+# @Software   : PyCharm
+# -----------------------------------------------------------------------------
+import base64
+import decimal
+import json
+import numpy as np
+
+class npEncoder(json.JSONEncoder):
+    def default(self, obj):
+        if isinstance(obj, np.ndarray):
+            return obj.tolist()
+        elif isinstance(obj, decimal.Decimal):
+            return obj.__str__()
+        elif isinstance(obj, np.int64):
+            return int(obj)
+        elif isinstance(obj, np.float64):
+            return float(obj)
+        return json.JSONEncoder.default(self, obj)
+
+def img_transfer(url):
+    """"""
+    img_content = 'data:image/png;base64,'
+    with open(url, 'rb') as f:
+        img_content += base64.b64encode(f.read()).decode('utf-8')
+    return img_content