private void generateMethodParamToHeaderCodeForComplexType(
     SourcePrinter srcWriter,
     String builder,
     String headerName,
     JType parameterType,
     String parameterExpression,
     String parameterCheckExpression) {
   PropertyInfo[] propertiesInfo =
       JClassUtils.extractBeanPropertiesInfo(parameterType.isClassOrInterface());
   for (PropertyInfo propertyInfo : propertiesInfo) {
     if (JClassUtils.isSimpleType(propertyInfo.getType())) {
       generateMethodParamToHeaderCodeForSimpleType(
           srcWriter,
           builder,
           headerName + "." + propertyInfo.getName(),
           propertyInfo.getType(),
           parameterExpression + "." + propertyInfo.getReadMethod().getName() + "()",
           (propertyInfo.getType().isPrimitive() != null
               ? parameterCheckExpression
               : parameterCheckExpression
                   + " && "
                   + parameterExpression
                   + "."
                   + propertyInfo.getReadMethod().getName()
                   + "()!=null"));
     } else {
       generateMethodParamToHeaderCodeForComplexType(
           srcWriter,
           builder,
           headerName + "." + propertyInfo.getName(),
           propertyInfo.getType(),
           parameterExpression + "." + propertyInfo.getReadMethod().getName() + "()",
           parameterCheckExpression
               + " && "
               + parameterExpression
               + "."
               + propertyInfo.getReadMethod().getName()
               + "()!=null");
     }
   }
 }
 private void buildFormStringForComplexType(StringBuilder str, JType parameterType, String value)
     throws UnsupportedEncodingException {
   PropertyInfo[] propertiesInfo =
       JClassUtils.extractBeanPropertiesInfo(parameterType.isClassOrInterface());
   boolean first = true;
   for (PropertyInfo propertyInfo : propertiesInfo) {
     if (!first) {
       str.append("&");
     }
     first = false;
     String parameterName =
         (StringUtils.isEmpty(value)
             ? propertyInfo.getName()
             : value + "." + propertyInfo.getName());
     if (JClassUtils.isSimpleType(propertyInfo.getType())) {
       buildFormStringForSimpleType(str, parameterName);
     } else {
       buildFormStringForComplexType(str, propertyInfo.getType(), parameterName);
     }
   }
 }