\u6bcf\u4e2aServlet \u7684\u8fd0\u884c\u90fd\u9075\u5faa\u5982\u4e0b\u751f\u547d\u5468\u671f\uff1a
\n1\u3001\u521b\u5efaServlet \u5b9e\u4f8b
\nweb \u5bb9\u5668\u8d1f\u8d23\u52a0\u8f7d Servlet\uff0c\u5f53 web \u5bb9\u5668\u542f\u52a8\u65f6\u6216\u8005\u662f\u5728\u7b2c\u4e00\u6b21\u4f7f\u7528\u8fd9\u4e2aServlet \u65f6\uff0c\u5bb9\u5668\u4f1a\u8d1f\u8d23\u521b\u5efa Servlet \u5b9e\u4f8b\uff0c\u4f46\u662f\u7528\u6237\u5fc5\u987b\u901a\u8fc7\u90e8\u7f72\u63cf\u8ff0\u7b26(web.xml\uff09\u6307\u5b9a Servlet \u7684\u4f4d\u7f6e\uff0c\u4e5f\u5c31\u662fServlet \u6240\u5728\u7684\u7c7b\u540d\u79f0\uff0c\u6210\u529f\u52a0\u8f7d\u540e\uff0cweb \u5bb9\u5668\u4f1a\u901a\u8fc7\u53cd\u5c04\u7684\u65b9\u5f0f\u5bf9 Servlet \u8fdb\u884c\u5b9e\u4f8b\u5316\u3002
\n2\u3001WEB \u5bb9\u5668\u8c03\u7528 Servlet \u7684 init()\u65b9\u6cd5\uff0c\u5bf9Servlet \u8fdb\u884c\u521d\u59cb\u5316
\n\u5728 Servlet \u5b9e\u4f8b\u5316\u4e4b\u540e\uff0cServlet \u5bb9\u5668\u4f1a\u8c03\u7528 init()\u65b9\u6cd5\uff0c\u6765\u521d\u59cb\u5316\u8be5\u5bf9\u8c61\uff0c\u4e3b\u8981\u662f\u4e3a\u4e86\u8ba9 Servlet \u5bf9\u8c61\u5728\u5904\u7406\u5ba2\u6237\u8bf7\u6c42\u524d\u53ef\u4ee5\u5b8c\u6210\u4e00\u4e9b\u521d\u59cb\u5316\u7684\u5de5\u4f5c\uff0c\u4f8b\u5982\uff0c\u5efa\u7acb\u6570\u636e\u5e93\u7684\u8fde\u63a5\uff0c\u83b7\u53d6\u914d\u7f6e\u4fe1\u606f\u7b49\u3002\u5bf9\u4e8e\u6bcf\u4e00\u4e2a Servlet \u5b9e\u4f8b\uff0cinit()\u65b9\u6cd5\u53ea\u80fd\u88ab\u8c03\u7528\u4e00\u6b21\u3002init ()\u65b9\u6cd5\u6709\u4e00\u4e2a\u7c7b\u578b\u4e3a ServletConfig \u7684\u53c2\u6570\uff0cServlet \u5bb9\u5668\u901a\u8fc7\u8fd9\u4e2a\u53c2\u6570\u5411 Servlet \u4f20\u9012\u914d\u7f6e\u4fe1\u606f\u3002Servlet \u4f7f\u7528ServletConfig\u5bf9\u8c61\u4eceWeb \u5e94\u7528\u7a0b\u5e8f\u7684\u914d\u7f6e\u4fe1\u606f\u4e2d\u83b7\u53d6\u4ee5\u540d-\u503c\u5bf9\u5f62\u5f0f\u63d0\u4f9b\u7684\u521d\u59cb\u5316\u53c2\u6570\u3002\u53e6\u5916\uff0c\u5728 Servlet \u4e2d\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7 ServletConfig \u5bf9\u8c61\u83b7\u53d6\u63cf\u8ff0Servlet \u8fd0\u884c\u73af\u5883\u7684 ServletContext \u5bf9\u8c61\uff0c\u4f7f\u7528\u8be5\u5bf9\u8c61\uff0cServlet \u53ef\u4ee5\u548c\u5b83\u7684Servlet \u5bb9\u5668\u8fdb\u884c\u901a\u4fe1\u3002\u65e0\u8bba\u6709\u591a\u5c11\u5ba2\u6237\u673a\u8bbf\u95ee Servlet\uff0c\u90fd\u4e0d\u4f1a\u91cd\u590d\u6267\u884cinit()\u3002
\n3\u3001Servlet \u521d\u59cb\u5316\u4e4b\u540e\uff0c\u5c06\u4e00\u76f4\u5b58\u5728\u4e8e\u5bb9\u5668\u4e2d\uff0cservice()\u54cd\u5e94\u5ba2\u6237\u7aef\u8bf7\u6c42
\n\u5982\u679c\u5ba2\u6237\u7aef\u53d1\u9001 GET \u8bf7\u6c42\uff0c\u5bb9\u5668\u8c03\u7528 Servlet \u7684 doGet()\u65b9\u6cd5\u5904\u7406\u5e76\u54cd\u5e94\u8bf7\u6c42
\n\u5982\u679c\u5ba2\u6237\u7aef\u53d1\u9001 POST \u8bf7\u6c42\uff0c\u5bb9\u5668\u8c03\u7528 Servlet \u7684 doPost()\u65b9\u6cd5\u5904\u7406\u5e76\u54cd\u5e94\u8bf7\u6c42\u6216\u8005\u7edf\u4e00\u7528 service()\u65b9\u6cd5\u5904\u7406\u6765\u54cd\u5e94\u7528\u6237\u8bf7\u6c42
\nservice()\u662fServlet \u7684\u6838\u5fc3\uff0c\u8d1f\u8d23\u54cd\u5e94\u5ba2\u6237\u7684\u8bf7\u6c42\u3002\u6bcf\u5f53\u4e00\u4e2a\u5ba2\u6237\u8bf7\u6c42\u4e00\u4e2aHttpServlet \u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61Service()\u65b9\u6cd5\u5c31\u8981\u8c03\u7528\uff0c\u800c\u4e14\u4f20\u9012\u7ed9\u8fd9\u4e2a\u65b9\u6cd5\u4e00\u4e2a\u201c\u8bf7\u6c42\u201d\uff08ServletRequest\uff09\u5bf9\u8c61\u548c\u4e00\u4e2a\u201c\u54cd\u5e94\u201d\uff08ServletResponse)\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\u3002\u5728HttpServlet \u4e2d\u5df2\u5b58\u5728Service()\u65b9\u6cd5\u3002\u9ed8\u8ba4\u7684\u670d\u52a1\u529f\u80fd\u662f\u8c03\u7528\u4e0e HTTP \u8bf7\u6c42\u7684\u65b9\u6cd5\u76f8\u5e94\u7684 do \u529f\u80fd\u3002\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728 service()\u65b9\u6cd5\u88ab\u5bb9\u5668\u8c03\u7528\u4e4b\u524d\uff0c\u5fc5\u987b\u786e\u4fdd init()\u65b9\u6cd5\u6b63\u786e\u5b8c\u6210\u3002\u5bb9\u5668\u4f1a\u6784\u9020\u4e00\u4e2a\u8868\u793a\u5ba2\u6237\u7aef\u8bf7\u6c42\u4fe1\u606f\u7684\u8bf7\u6c42\u5bf9\u8c61\uff08\u7c7b\u578b\u4e3a ServletRequest\uff09\u548c\u4e00\u4e2a\u7528\u4e8e\u5bf9\u5ba2\u6237\u7aef\u8fdb\u884c\u54cd\u5e94\u7684\u54cd\u5e94\u5bf9\u8c61(\u7c7b\u578b\u4e3aServletResponse)\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9 service()\u65b9\u6cd5\u3002\u5728service()\u65b9\u6cd5\u4e2d\uff0cServlet \u5bf9\u8c61\u901a\u8fc7 ServletRequest \u5bf9\u8c61\u5f97\u5230\u5ba2\u6237\u7aef\u7684\u76f8\u5173\u4fe1\u606f\u548c\u8bf7\u6c42\u4fe1\u606f\uff0c\u5728\u5bf9\u8bf7\u6c42\u8fdb\u884c\u5904\u7406\u540e\uff0c\u8c03\u7528 ServletResponse \u5bf9\u8c61\u7684\u65b9\u6cd5\u8bbe\u7f6e\u54cd\u5e94\u4fe1\u606f\u3002
\n4\u3001WEB \u5bb9\u5668\u51b3\u5b9a\u9500\u6bc1 Servlet \u65f6\uff0c\u5148\u8c03\u7528 Servlet \u7684destroy()\u65b9\u6cd5\uff0c\u901a\u5e38\u5728\u5173\u95ed web \u5e94\u7528\u4e4b\u524d\u9500\u6bc1 Servlet
\ndestroy()\u4ec5\u6267\u884c\u4e00\u6b21\uff0c\u5728\u670d\u52a1\u5668\u7aef\u505c\u6b62\u4e14\u5378\u8f7d Servlet \u65f6\u6267\u884c\u8be5\u65b9\u6cd5\u3002\u5f53\u5bb9\u5668\u68c0\u6d4b\u5230\u4e00\u4e2a Servlet \u5bf9\u8c61\u5e94\u8be5\u4ece\u670d\u52a1\u4e2d\u88ab\u79fb\u9664\u7684\u65f6\u5019\uff0c\u5bb9\u5668\u4f1a\u8c03\u7528\u8be5\u5bf9\u8c61\u7684destroy()\u65b9\u6cd5\uff0c\u4ee5\u4fbf\u8ba9 Servlet \u5bf9\u8c61\u53ef\u4ee5\u91ca\u653e\u5b83\u6240\u4f7f\u7528\u7684\u8d44\u6e90\uff0c\u4fdd\u5b58\u6570\u636e\u5230\u6301\u4e45\u5b58\u50a8\u8bbe\u5907\u4e2d\uff0c\u4f8b\u5982\uff0c\u5c06\u5185\u5b58\u4e2d\u7684\u6570\u636e\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\uff0c\u5173\u95ed\u6570\u636e\u5e93\u7684\u8fde\u63a5\u7b49\u3002\u5f53\u9700\u8981\u91ca\u653e\u5185\u5b58\u6216\u8005\u5bb9\u5668\u5173\u95ed\u65f6\uff0c\u5bb9\u5668\u5c31\u4f1a\u8c03\u7528 Servlet \u5bf9\u8c61\u7684 destroy()\u65b9\u6cd5\u3002\u5728 Servlet \u5bb9\u5668\u8c03\u7528 destroy()\u65b9\u6cd5\u524d\uff0c\u5982\u679c\u8fd8\u6709\u5176\u4ed6\u7684\u7ebf\u7a0b\u6b63\u5728service()\u65b9\u6cd5\u4e2d\u6267\u884c\uff0c\u5bb9\u5668\u4f1a\u7b49\u5f85\u8fd9\u4e9b\u7ebf\u7a0b\u6267\u884c\u5b8c\u6bd5\u6216\u7b49\u5f85\u670d\u52a1\u5668\u8bbe\u5b9a\u7684\u8d85\u65f6\u503c\u5230\u8fbe\u3002\u4e00\u65e6Servlet\u5bf9\u8c61destroy()\u65b9\u6cd5\u88ab\u8c03\u7528\uff0c\u5bb9\u5668\u4e0d\u4f1a\u518d\u628a\u5176\u4ed6\u7684\u8bf7\u6c42\u53d1\u9001\u7ed9\u8be5\u5bf9\u8c61\u3002\u5982\u679c\u9700\u8981\u8be5 Servlet \u518d\u6b21\u4e3a\u5ba2\u6237\u7aef\u670d\u52a1\uff0c\u5bb9\u5668\u5c06\u4f1a\u91cd\u65b0\u4ea7\u751f\u4e00\u4e2a Servlet \u5bf9\u8c61\u6765\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002\u5728 destroy()\u65b9\u6cd5\u8c03\u7528\u4e4b\u540e\uff0c\u5bb9\u5668\u4f1a\u91ca\u653e\u8fd9\u4e2a Servlet \u5bf9\u8c61\uff0c\u5728\u968f\u540e\u7684\u65f6\u95f4\u5185\uff0c\u8be5\u5bf9\u8c61\u4f1a\u88ab Java \u7684\u5783\u573e\u6536\u96c6\u5668\u6240\u56de\u6536\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6bcf\u4e2aServlet \u7684\u8fd0\u884c\u90fd\u9075\u5faa\u5982\u4e0b\u751f\u547d\u5468\u671f\uff1a 1\u3001\u521b\u5efaServlet \u5b9e\u4f8b web \u5bb9\u5668\u8d1f\u8d23\u52a0\u8f7d Servl […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[99],"tags":[],"class_list":["post-8896","post","type-post","status-publish","format-standard","hentry","category-javabase"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8896","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=8896"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8896\/revisions"}],"predecessor-version":[{"id":8897,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8896\/revisions\/8897"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=8896"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=8896"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=8896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}