{"id":1061,"date":"2021-03-08T16:46:29","date_gmt":"2021-03-08T08:46:29","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=1061"},"modified":"2021-03-17T11:37:17","modified_gmt":"2021-03-17T03:37:17","slug":"servletcontext%e5%9f%9f%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-1061.html","title":{"rendered":"servletContext\u57df\u5bf9\u8c61"},"content":{"rendered":"\n<p>\u6bcf\u4e2aweb\u5e94\u7528\u7a0b\u5e8f\uff0c\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684ServletContext\u5bf9\u8c61\uff0c\u4e5f\u79f0\u4e3a\u4e0a\u4e0b\u6587<\/p>\n\n\n\n<h5>1.\u83b7\u53d6servletContext\u76842\u79cd\u65b9\u6cd5<\/h5>\n\n\n\n<ul><li>\u76f4\u63a5\u8c03\u7528getServletContext();<\/li><li>\u4f7f\u7528ServletConfig\u5bf9\u8c61\u8c03\u7528\uff0c\u5373getServletConfig().getServletContext();<\/li><\/ul>\n\n\n\n<h5>2.\u83b7\u53d6\u5e94\u7528\u7a0b\u5e8f\u7684\u521d\u59cb\u5316\u53c2\u6570<\/h5>\n\n\n\n<ul><li>public String getInitParameter(String name)\uff1a\u8fd4\u56de\u6307\u5b9a\u7684\u521d\u59cb\u5316\u53c2\u6570\u503c<\/li><li>public Enumeration getInitParameterNames()\uff1a\u8fd4\u56de\u6240\u6709\u53c2\u6570\u540d<\/li><\/ul>\n\n\n\n<h5>3.\u5b58\u50a8\u6570\u636e\uff08ServletContext\u57df\u5bf9\u8c61\u8303\u56f4\u662f\u6574\u4e2aweb\u5e94\u7528\u7a0b\u5e8f\uff09<\/h5>\n\n\n\n<ul><li><strong>public void setAttribute(String name, Object object)\uff1a\u5b58\u50a8\u503c<\/strong><\/li><li><strong>public Object getAttribute(String name)\uff1a\u83b7\u53d6\u503c<\/strong><\/li><li>public void removeAttribute(String name)\uff1a\u5220\u9664\u503c<\/li><\/ul>\n\n\n\n<h5>4.\u83b7\u53d6\u8bf7\u6c42\u8f6c\u53d1\u5668\uff0c\u5e76\u8f6c\u53d1<\/h5>\n\n\n\n<ul><li>RequestDispatcher getRequestDispatcher(String path);\u5176\u4e2dpath\u662f\u8def\u5f84\uff0c<\/li><li>RequestDispatcher getNamedDispatcher(String name);\u53c2\u6570name\u4e3aservlet<\/li><li>\u8fd9\u91cc\u7684\u8bf7\u6c42\u8f6c\u53d1\u5668\uff0c\u8def\u5f84\u53ea\u80fd\u662f\/\u5f00\u5934\uff0c\u4e0b\u540c<\/li><\/ul>\n\n\n\n<h5>5.\u83b7\u53d6\u8d44\u6e90<\/h5>\n\n\n\n<ul><li>public URL getResource(String path);\u5176\u4e2d\u7684path\u53ea\u80fd\/\u5f00\u5934<\/li><li>public InputStream getResourceAsStream(String path);\u7b49\u4ef7\u4e8e<ul><li>getResource(path).openStream();\u4e5f\u5c31\u662f\u8bf4\u4ece\u8d44\u6e90\u83b7\u5f97\u4e86InputStream<\/li><\/ul><\/li><li>public String getRealPath(String path)\uff1a\u83b7\u53d6\u76f8\u5bf9\u8def\u5f84\u7684\u7edd\u5bf9\u8def\u5f84\uff08\u5e38\u7528\uff09<\/li><\/ul>\n\n\n\n<h5>6.\u5199\u5165\u65e5\u5fd7<\/h5>\n\n\n\n<ul><li>public void log(String msg)\uff1a\u5199\u5165\u65e5\u5fd7\uff0c\u4f4d\u7f6e\u5728tomcat\\logs\\host.time.log<\/li><li>public void log(String msg,Throwable throwable)\uff1a\u5c06\u6307\u5b9a\u7684\u4fe1\u606f\u548c\u5f02\u5e38\u7684\u6808\u8ddf\u8e2a\u4fe1\u606f\u5199\u5165\u65e5\u5fd7\u6587\u4ef6<\/li><\/ul>\n\n\n\n<h5>7.\u68c0\u7d22Servlet\u5bb9\u5668\u7684\u4fe1\u606f<\/h5>\n\n\n\n<ul><li>getServerInfo()\uff1a\u8fd4\u56de\u5bb9\u5668\u7684\u540d\u79f0\u548c\u7248\u672c<\/li><li>getMajorVersion()\uff1a\u8fd4\u56de\u5bb9\u5668\u652f\u6301api\u7684\u4e3b\u7248\u672c\u53f7<\/li><li>getMiniorVersion()\uff1a\u8fd4\u56de\u5bb9\u5668\u652f\u6301api\u7684\u6b64\u7248\u672c\u53f7<\/li><li>getServletContextName()\uff1a\u8fd4\u56de&lt;display-name&gt;\u5b9a\u4e49\u7684\u540d\u79f0<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6bcf\u4e2aweb\u5e94\u7528\u7a0b\u5e8f\uff0c\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684ServletContext\u5bf9\u8c61\uff0c\u4e5f\u79f0\u4e3a\u4e0a\u4e0b\u6587 1.\u83b7\u53d6servletCon&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/java\/post-1061.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">servletContext\u57df\u5bf9\u8c61<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/1061"}],"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=1061"}],"version-history":[{"count":1,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/1061\/revisions"}],"predecessor-version":[{"id":1166,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/1061\/revisions\/1166"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=1061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=1061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=1061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}