uniapp app 端调起支付宝支付接口

orderInfo 的格式类似下面的代码中的长字符串

支付宝支付接口传送门
沙箱调试客户端

let orderInfo = 'app_id=2016091654625569&biz_content=shike&charset=utf-8&method=alipay.trade.app.pay¬ify_url=http%3A%2F%2F112.74.68.252%3A9200%2Fcssd%2Fapi%2Falipay_notify&out_trade_no=2019052456194799&product_code=QUICK_MSECURITY_PAY&sign_type=RSA2&subject=LV%E5%8C%85%E5%A5%B3%E6%80%A7%E5%A5%A2%E4%BE%88%E5%8C%85×tamp=2019-05-24+16%3A32%3A27&total_amount=1770.0&version=1.0&sign=R5dwr0XAX42jocM86fIZFTIX5HzzE4U2xBvhU5qWo8hjAO%2F%2FNH4u3XF%2FeCjxtXOVPRTUgPGMbkPBj1pDA2QMmdZk55nBhjb%2FJ0H9kmBFPBek7AwuANZNbU3Lc0keMGxlxJDAadzgaMckiuNXLSkHDAPeI7glR7Yx86FVyqM88V9bEHjIY7e5kfS7f2phU8VmJrAdda32aW49ETgmBMtxPzo1DmzP8r7ovqFu9IAl7MDXYlsUUR4z9%2B9puEtZUe81QI895HD%2FnKN5JiwKhTAcsOXar752NI1j7rJlp%2BVrqejjuXXfvxFmMkWNUXjXWKPGgbQf7uiRJhgfuJp5mJzsEA%3D%3D'
uni.requestPayment({
	provider: 'alipay',
	orderInfo: orderInfo, 
	success: function (res) {
		
		console.log('success:' + JSON.stringify(res));
	},
	fail: function (err) {
		console.log('fail:' + JSON.stringify(err));
	}
});