Question

在swift 2之前，下面的代码曾经工作过。但是在升级到Swift 2后，我的代码不再有效。我已经使用Postman和RESTClient验证了我的Web服务是否有效。

let url = NSURL(string: "https://")
        let mutableURL = NSMutableURLRequest(URL:url!)
        mutableURL.HTTPMethod = "POST"
        let str = "user_id=90031963"
        mutableURL.HTTPBody = str.dataUsingEncoding(NSUTF8StringEncoding)
        leaderboardWebView.loadRequest(mutableURL)

非常感谢任何评论和反馈。

干杯

Answer 1

Swift2在安全在线连接方面非常严格。可能是连接被拒绝，因为您的服务器没有有效的ssh证书。出于测试目的，尝试将此词典添加到info.plist中：

poly1 = '4.0x^5 - 2.0x^3 + 2.0x + 3.0'
poly2 = '8.0x^4 + 4.0x^3 + -3.0x + 9.0'

# Makes component extraction from array easier.

coeff = 0
power = 1

def baseline(s):
    # Remove spaces, normalise to all '+'.

    check = s + ' '
    result = s
    while result != check:
        check = result
        result = result.replace(' ','');
        result = result.replace('-','+-')
        result = result.replace('++','+')

    # Create array of terms.

    result = result.split('+')

    # Make each term a coefficient/power pair.

    for i in range(len(result)):
        result[i] = result[i].split('^')
        if len(result[i]) == 1 and result[i][coeff].endswith('x'):
            result[i].append('1')
        if len(result[i]) == 1 and not result[i][coeff].endswith('x'):
            result[i].append('0')
        if result[i][coeff].endswith('x'):
            result[i][coeff] = result[i][coeff][:-1]
        result[i][coeff] = float(result[i][coeff])
        result[i][power] = int(result[i][power])

    return result

def polyprint(s,p):
    print()
    print(s, p, end=':\n   ')
    if len(p) > 0:
        print(p[0][coeff],end='')
        if p[0][power] == 1:
            print('x',end='')
        elif p[0][power] > 1:
            print('x^%d' % (p[0][power]),end='')
        for i in range(1,len(p)):
            if p[i][coeff] < 0:
                print(' -',-p[i][coeff],end='')
            else:
                print(' +',p[i][coeff],end='')
            if p[i][power] == 1:
                print('x',end='')
            elif p[i][power] > 1:
                print('x^%d' % (p[i][power]),end='')
    print()

# Turn polynomials into sparse (based on powers) array.

poly1 = baseline(poly1)
poly2 = baseline(poly2)

polyprint('poly1',poly1)
polyprint('poly2',poly2)

# Add them as per sorted algorithm.

poly3 = []
idx1 = 0
idx2 = 0
while idx1 < len(poly1) and idx2 < len(poly2):
    if poly1[idx1][power] == poly2[idx2][power]:
        if poly1[idx1][coeff] != poly2[idx2][coeff]:
            poly3.append([poly1[idx1][coeff] + poly2[idx2][coeff], poly1[idx1][power]])
        idx1 += 1
        idx2 += 1
        continue

    if poly1[idx1][power] > poly2[idx2][power]:
        poly3.append([poly1[idx1][coeff], poly1[idx1][power]])
        idx1 += 1
        continue

    poly3.append([poly2[idx2][coeff], poly2[idx2][power]])
    idx2 += 1

while idx1 < len(poly1):
    poly3.append([poly1[idx1][coeff], poly1[idx1][power]])
    idx1 += 1

while idx2 < len(poly2):
    poly3.append([poly2[idx2][coeff], poly2[idx2][power]])
    idx2 += 1

polyprint('poly3',poly3)

如果有效，则表示您需要检查服务器安全设置。您可以在此处详细了解它：https://developer.apple.com/library/prerelease/ios/technotes/App-Transport-Security-Technote/

请注意，除非您确实不需要安全连接，否则Apple不建议使用此词典。

在UIWebView上使用swift 2进行POST不起作用

1 个答案: