String.format %s
String url = String.format("name = %s & age = %s & sex = %s", "haha", 12, "女"); System.out.println(url); //name = haha & age = 12 & sex = 女
String.format %s
String url = String.format("name = %s & age = %s & sex = %s", "haha", 12, "女"); System.out.println(url); //name = haha & age = 12 & sex = 女