{"id":1065,"date":"2021-03-08T16:49:13","date_gmt":"2021-03-08T08:49:13","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=1065"},"modified":"2021-03-08T16:49:14","modified_gmt":"2021-03-08T08:49:14","slug":"cookie%e5%8f%8a%e5%85%b6%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-1065.html","title":{"rendered":"cookie\u53ca\u5176\u5e94\u7528"},"content":{"rendered":"\n<p>\u5ba2\u6237\u7aef\u4f1a\u8bdd\u6280\u672f\uff0c\u5c06\u6570\u636e\u4fdd\u5b58\u5230\u5ba2\u6237\u7aef\u3002<\/p>\n\n\n\n<h5>1.cookie\u7684\u7c7b\u5305<\/h5>\n\n\n\n<p>\u5bf9cookie\u7684\u7ba1\u7406\u9700\u8981\u4f7f\u7528javax.servlet.http.Cookie\u7c7b\uff0c\u4e5f\u5c31\u662fservlet\u7684\u5b50\u5305\uff0c\u5bfc\u5165servlet\u540e\uff0c\u9ed8\u8ba4\u5c31\u53ef\u4ee5\u4f7f\u7528cookie<\/p>\n\n\n\n<h5>2.\u521b\u5efacookie\u5bf9\u8c61<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>Cookie myCookie = new Cookie(\"name\",\"value\");<\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\u7684name\u548cvalue\u5747\u4e3a\u5b57\u7b26\u4e32\u3002\u662fcookie\u7684\u540d\u548c\u503c\uff0ccookie\u683c\u5f0f\u662f\u952e\u503c\u5bf9\u3002<\/p>\n\n\n\n<h5>3.\u53d1\u9001cookie\u5230\u5ba2\u6237\u7aef<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>response.addCookie(myCookie);<\/code><\/pre>\n\n\n\n<h5>4.\u8bbe\u7f6ecookie\u7684\u5b58\u6d3b\u65f6\u95f4<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>myCookie.setMaxAge(60*60*24*7);<\/code><\/pre>\n\n\n\n<p>\u9ed8\u8ba4\u5355\u4f4d\u662f\u79d2\uff0c\u8fd9\u91cc\u8bbe\u7f6e\u4e3a\u4e00\u4e2a\u661f\u671f<\/p>\n\n\n\n<h5>5.\u4ece\u5ba2\u6237\u7aef\u83b7\u53d6cookie<\/h5>\n\n\n\n<p>\u9996\u5148\uff0c\u4f7f\u7528request\u5bf9\u8c61\u83b7\u53d6\u6240\u6709cookie<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Cookie&#91;] cookies = request.getCookies();<\/code><\/pre>\n\n\n\n<p>\u60f3\u8981\u83b7\u53d6\u67d0\u4e2acookie\uff0c\u5fc5\u987b\u904d\u5386cookie\u6570\u7ec4\uff0c\u4ee5\u83b7\u5f97\u5b83\u7684\u503c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>String cookieName = \"name\";\nString cookieValue = null;\nif(cookies!=null){\n  for(int i=0;i&lt;cookies.length;i++){\n    Cookie cookie = cookies&#91;i];\n    if(cookie.getName().equals(cookieName)){\n      cookieValue = cookie.getValue();\n    }\n  }\n}<\/code><\/pre>\n\n\n\n<h5>6.cookie\u7c7b\u7684\u5e38\u7528\u65b9\u6cd5<\/h5>\n\n\n\n<ul><li>public String getName()\uff1b\u8fd4\u56decookie\u540d\u79f0<\/li><li>public String getValue()\uff1b\u8fd4\u56decookie\u7684\u503c<\/li><li>public void setValue(String new Value)\uff1b\u8bbe\u7f6ecookie\u7684\u503c<\/li><li>public void setMaxAge(int expiry)\uff1b\u8bbe\u7f6e\u5b58\u6d3b\u65f6\u95f4<ul><li>\u6b63\u6570\uff0c\u5b58\u6d3b\u7684\u79d2\u6570<\/li><li>\u8d1f\u6570\uff0c\u9ed8\u8ba4\u503c<\/li><li>\u96f6\uff0c\u7acb\u5373\u5220\u9664<\/li><\/ul><\/li><li>public int getMaxAge()\uff1b\u8fd4\u56de\u5b58\u6d3b\u65f6\u95f4<\/li><li>public void setDomain(String pattern)\uff1b\u8bbe\u7f6ecookie\u7684\u57df\u540d\uff0c\u4ee5.\u5f00\u5934<\/li><li>public String getDomain()\uff1b\u8fd4\u56decookie\u7684\u57df\u540d<\/li><\/ul>\n\n\n\n<h5>7.\u8bbe\u7f6ecookie\u7684\u4f5c\u7528\u8def\u5f84\uff08\u4e0d\u592a\u5e38\u7528\uff09<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>cookie.setPath(String path);<\/code><\/pre>\n\n\n\n<h5>8.cookie\u7684\u7279\u70b9<\/h5>\n\n\n\n<ul><li>\u5b58\u50a8\u5728\u5ba2\u6237\u7aef\u6d4f\u89c8\u5668\uff08\u6240\u4ee5\u4e0d\u592a\u5b89\u5168\uff09<\/li><li>\u6d4f\u89c8\u5668\u5bf9cookie\u6709\u9650\u5236<ul><li>\u5355\u4e2acookie\u7684\u5927\u5c0f\uff084kb\uff09<\/li><li>\u5355\u4e2a\u57df\u540d\u4e0bcookie\u6570\u91cf\uff0820\u4e2a\uff09<\/li><\/ul><\/li><\/ul>\n\n\n\n<h5>9.cookie\u7684\u4f5c\u7528<\/h5>\n\n\n\n<ul><li>\u53ea\u80fd\u5b58\u653e\u5c11\u91cf\u654f\u611f\u7684\u6570\u636e<\/li><li>\u5728\u4e0d\u767b\u5f55\u7684\u60c5\u51b5\u4e0b\uff0c\u5b8c\u6210\u670d\u52a1\u5668\u5bf9\u5ba2\u6237\u7aef\u7684\u8eab\u4efd\u8bc6\u522b<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5ba2\u6237\u7aef\u4f1a\u8bdd\u6280\u672f\uff0c\u5c06\u6570\u636e\u4fdd\u5b58\u5230\u5ba2\u6237\u7aef\u3002 1.cookie\u7684\u7c7b\u5305 \u5bf9cookie\u7684\u7ba1\u7406\u9700\u8981\u4f7f\u7528javax.serv&hellip; 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