Question

当我尝试将此WebMethod称为JQuery自动完成时，我遇到400（错误请求）。我在其他帖子上试过这些解决方案，但它们似乎没有用。这是我的代码。 webmethod应该不带参数，并从同一目录中的csv文件返回JSON字符串。我试图做很多事情来防止出现这个错误，但似乎都没有。

C＃

SELECT pt.product_name,
       pt.company_id,
       (SELECT MIN (price)
          FROM cake_table ct
         WHERE     ct.product_code = pt.product_code
               AND ct.weight = (SELECT MIN (sub.weight)
                                  FROM cake_table sub
                                 WHERE sub.product_code = ct.product_code))
           cake_price
  FROM base_product_table pt

JQuery的

( (SELECT pt.product_name,
          pt.company_id,
          (SELECT MIN (price)
             FROM cake_table ct
            WHERE     ct.product_code = pt.product_code
                  AND ct.weight = (SELECT MIN (sub.weight)
                                     FROM cake_table sub
                                    WHERE sub.product_code = ct.product_code))
              cake_price
     FROM base_product_table pt
    WHERE EXISTS
              (SELECT 'X'
                 FROM cake_table ck
                WHERE ck.product_code = pt.product_code))
 UNION ALL
 (SELECT pt.product_name,
         pt.company_id,
         (SELECT MIN (price)
            FROM wraps_table ct
           WHERE     ct.product_code = pt.product_code
                 AND ct.weight = (SELECT MIN (sub.weight)
                                    FROM wraps_table sub
                                   WHERE sub.product_code = ct.product_code))
             cake_price
    FROM base_product_table pt
   WHERE EXISTS
             (SELECT 'X'
                FROM wraps_table ck
               WHERE ck.product_code = pt.product_code)))

Answer 1

请尝试

data: '{}',

而不是

data: JSON.stringify({}),

400（错误请求）JQuery自动完成WebMethod调用

1 个答案: