03 springspring

spel

mp类型解析

#in[‘wid’]+’‘+#basicInfo[‘bosId’]+’‘+#basicInfo[‘merchantId’]+’‘+#basicInfo[‘productId’]+’‘+#basicInfo[‘productInstanceId’]+’‘+#basicInfo[‘tcode’] +’‘+#extParams[‘source’]

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   StandardEvaluationContext context = new StandardEvaluationContext();
   String[] parameterNames = VARIABLE_NAME_DISCOVERER.getParameterNames(method);

   context.setVariable("method", method);
   context.setVariable("methodName", method.getName());
   context.addPropertyAccessor(new MapAccessor());


   for (int i = 0; i < args.length; i++) {
       context.setVariable(parameterNames[i], args[i]);
   }
  
  
    ExpressionParser parser = new SpelExpressionParser();
    
	
String result =  spelParser.parseExpression(key).getValue(context, String.class)