The service has been stopped.
It is the 8th of March.
See the top of this page for information on the death of v2
See The Google Geocoding API for v3
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Edit.
Actually, there is a page about upgrading to v3 that may be of use.
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Edit.
As just pointed out, the Geocoding API V2 deprecation timeline was just extended by another 6 months, but be careful of your usage.
From @FrVaBe's link:
"Today we’re also reducing the limit on Geocoding API V2 from 15,000 requests per day to 2,500 requests per day, which is equivalent to the daily limit on the Geocoding API V3."
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…