{"id":939,"date":"2021-02-18T19:55:15","date_gmt":"2021-02-18T11:55:15","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=939"},"modified":"2021-02-18T20:05:05","modified_gmt":"2021-02-18T12:05:05","slug":"consumer-%e5%87%bd%e6%95%b0%e5%bc%8f%e6%8e%a5%e5%8f%a3","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-939.html","title":{"rendered":"Consumer \u51fd\u6570\u5f0f\u63a5\u53e3"},"content":{"rendered":"\n

\u6b64\u63a5\u53e3\u662f\u4e00\u4e2a\u6d88\u8d39\u578b\u63a5\u53e3<\/p>\n\n\n\n

1.\u5bfc\u5305<\/h5>\n\n\n\n
import java.util.function.Consumer;<\/code><\/pre>\n\n\n\n
2.\u65b9\u6cd5<\/h5>\n\n\n\n
1.\u6b64\u63a5\u53e3\u5305\u542b\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5 void accept(T t)<\/p>\n\n\n\n
\u6b64\u63a5\u53e3\u4e5f\u662f\u4e00\u4e2a\u6cdb\u578b\u7c7b\uff0c\u5373 Consumer<T>\uff0c\u4f7f\u7528\u6cdb\u578b\u4f20\u9012\u4e00\u4e2a\u6570\u636e\u7c7b\u578b<\/p>\n\n\n\n
import java.util.function.Consumer;\npublic class Demo {\n    \/*\n        \u5b9a\u4e49\u4e00\u4e2a\u65b9\u6cd5\n        \u65b9\u6cd5\u7684\u53c2\u6570\u4f20\u9012\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u59d3\u540d\n        \u65b9\u6cd5\u7684\u53c2\u6570\u4f20\u9012Consumer\u63a5\u53e3,\u6cdb\u578b\u4f7f\u7528String\n        \u53ef\u4ee5\u4f7f\u7528Consumer\u63a5\u53e3\u6d88\u8d39\u5b57\u7b26\u4e32\u7684\u59d3\u540d\n     *\/\n\tpublic static void method(String name, Consumer<String> con){\n\t    con.accept(name);\n\t}\n\n    public static void main(String[] args) {\n        \/\/\u8c03\u7528method\u65b9\u6cd5,\u4f20\u9012\u5b57\u7b26\u4e32\u59d3\u540d,\u65b9\u6cd5\u7684\u53e6\u4e00\u4e2a\u53c2\u6570\u662fConsumer\u63a5\u53e3,\u662f\u4e00\u4e2a\u51fd\u6570\u5f0f\u63a5\u53e3,\u6240\u4ee5\u53ef\u4ee5\u4f20\u9012Lambda\u8868\u8fbe\u5f0f\n        method(\"\u5f20\u4e09\",(String name)->{\n            \/\/\u5bf9\u4f20\u9012\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u6d88\u8d39\n\n            \/\/\u6d88\u8d39\u65b9\u5f0f:\u628a\u5b57\u7b26\u4e32\u8fdb\u884c\u53cd\u8f6c\u8f93\u51fa\n            String reName = new StringBuffer(name).reverse().toString();\n            System.out.println(reName);\n        });\n    }\n}<\/code><\/pre>\n\n\n\n
2.\u6b64\u63a5\u53e3\u5305\u542b\u4e00\u4e2a\u9ed8\u8ba4\u65b9\u6cd5Consumer<T> andThen(Consumer<? super T> after)<\/p>\n\n\n\n
import java.util.function.Consumer;\npublic class Demo {\n \/\/\u5b9a\u4e49\u4e00\u4e2a\u65b9\u6cd5,\u65b9\u6cd5\u7684\u53c2\u6570\u4f20\u9012\u4e00\u4e2a\u5b57\u7b26\u4e32\u548c\u4e24\u4e2aConsumer\u63a5\u53e3,Consumer\u63a5\u53e3\u7684\u6cdb\u578b\u4f7f\u7528\u5b57\u7b26\u4e32\n public static void method(String s, Consumer<String> con1 ,Consumer<String> con2){\n     \/\/con1.accept(s);\n     \/\/con2.accept(s);\n     \/\/\u4f7f\u7528andThen\u65b9\u6cd5,\u628a\u4e24\u4e2aConsumer\u63a5\u53e3\u8fde\u63a5\u5230\u4e00\u8d77,\u5728\u6d88\u8d39\u6570\u636e\n     con1.andThen(con2).accept(s);\/\/con1\u8fde\u63a5con2,\u5148\u6267\u884ccon1\u6d88\u8d39\u6570\u636e,\u5728\u6267\u884ccon2\u6d88\u8d39\u6570\u636e\n }\n\n public static void main(String[] args) {\n     \/\/\u8c03\u7528method\u65b9\u6cd5,\u4f20\u9012\u4e00\u4e2a\u5b57\u7b26\u4e32,\u4e24\u4e2aLambda\u8868\u8fbe\u5f0f,\u6d88\u8d39\u65b9\u5f0f\u5206\u522b\u662f\u5927\u5199\u548c\u5c0f\u5199\n     method(\"Hello\",(t)->System.out.println(t.toUpperCase()),(t)->System.out.println(t.toLowerCase()));\n }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u6b64\u63a5\u53e3\u662f\u4e00\u4e2a\u6d88\u8d39\u578b\u63a5\u53e3 1.\u5bfc\u5305 2.\u65b9\u6cd5 1.\u6b64\u63a5\u53e3\u5305\u542b\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5 void accept(T t) \u6b64\u63a5… \u7ee7\u7eed\u9605\u8bfb Consumer \u51fd\u6570\u5f0f\u63a5\u53e3<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[28],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/939"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=939"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/939\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}