String str ="{"https://images-na.ssl-images-amazon.com/images/I/81dbJ1GJ6cL._SY450_.jpg":[450,384],"https://images-na.ssl-images-amazon.com/images/I/81dbJ1GJ6cL._SX679_.jpg":[797,679],"https://images-na.ssl-images-amazon.com/images/I/81dbJ1GJ6cL._SX522_.jpg":[612,522],"https://images-na.ssl-images-amazon.com/images/I/81dbJ1GJ6cL._SX466_.jpg":[547,466],"https://images-na.ssl-images-amazon.com/images/I/81dbJ1GJ6cL._SX425_.jpg":[499,425],"https://images-na.ssl-images-amazon.com/images/I/81dbJ1GJ6cL._SY355_.jpg":[355,303],"https://images-na.ssl-images-amazon.com/images/I/81dbJ1GJ6cL._SX569_.jpg":[668,569]}"; Matcher matcher = Pattern.compile("http.*?"").matcher(str); "http.*"":从http开始到最后一个" "http.*?"" 从http开始到到多个&a