{"id":22,"date":"2014-06-05T17:08:51","date_gmt":"2014-06-05T09:08:51","guid":{"rendered":"http:\/\/iespandy.sinaapp.com\/?p=22"},"modified":"2014-06-05T17:08:51","modified_gmt":"2014-06-05T09:08:51","slug":"%e7%a6%81%e6%ad%a2%e9%a1%b5%e9%9d%a2%e7%bc%93%e5%ad%98%e7%9a%84%e4%b8%80%e4%b8%aa%e7%ae%80%e6%98%93filter%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/www.espandy.com\/?p=22","title":{"rendered":"\u7981\u6b62\u9875\u9762\u7f13\u5b58\u7684\u4e00\u4e2a\u7b80\u6613filter\u5b9e\u73b0"},"content":{"rendered":"<p>\u5728b\/s\u7ed3\u6784\u7684\u7a0b\u5e8f\u4e2d\uff0c\u6709\u65f6\u6211\u4eec\u5e0c\u671b\u9875\u9762\u7684\u5185\u5bb9\u4e0d\u8981\u7f13\u5b58\u5230\u5ba2\u6237\u7aef\u3002\u4f8b\u5982\u76ee\u524d\u6d41\u884c\u7684\u89c6\u9891\u7f51\u7ad9\uff0c\u5982\u679c\u89c6\u9891\u88ab\u7f13\u5b58\u5230\u5ba2\u6237\u7aef\u7684\u8bdd\uff0c\u7248\u6743\u5c31\u5f97\u4e0d\u5230\u4fdd\u62a4\u4e86\u3002\u8981\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\uff0c\u53ef\u4ee5\u7528filter\u6765\u7981\u6b62\u9875\u9762\u7f13\u5b58\uff0c\u8fd9\u6837\u5c31\u4e0d\u7528\u518d\u5728\u6bcf\u4e2a\u9875\u9762\u91cc\u53bb\u52a0\u90a3\u51e0\u884c\u4ee3\u7801\u4e86\u3002<\/p>\n<p>package beanservlettest;<\/p>\n<p>import javax.servlet.*;<br \/>\nimport javax.servlet.http.*;<br \/>\nimport java.io.*;<br \/>\nimport java.util.*;<\/p>\n<p>public class servfilter extends HttpServlet implements Filter {<br \/>\n private FilterConfig filterConfig;<br \/>\n \/\/Handle the passed-in FilterConfig<br \/>\n public void init(FilterConfig filterConfig) {<br \/>\n  this.filterConfig = filterConfig;<br \/>\n }<br \/>\n \/\/Process the request\/response pair<br \/>\n public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) {<br \/>\n  try {<br \/>\n     request.setCharacterEncoding(GB2312);\/\/\u8bbe\u7f6e\u7f16\u7801<br \/>\n     ((HttpServletResponse)response).setHeader(Pragma,No-cache);<br \/>\n     ((HttpServletResponse)response).setHeader(Cache-Control,no-cache);<br \/>\n     ((HttpServletResponse)response).setHeader(Expires,0);\/\/\u7981\u6b62\u7f13\u5b58<br \/>\n   \/\/\u81ea\u5df1\u6dfb\u52a0\u7684\u4ee3\u7801\u5c31\u8fd9\u4e0a\u9762\u56db\u884c\uff0c\u5176\u5b83\u7684\u90fd\u662fJbuilder\u81ea\u52a8\u751f\u6210\u7684\uff1a\uff09<br \/>\n   filterChain.doFilter(request, response);<br \/>\n  }<br \/>\n  catch(ServletException sx) {<br \/>\n   filterConfig.getServletContext().log(sx.getMessage());<br \/>\n  }<br \/>\n  catch(IOException iox) {<br \/>\n   filterConfig.getServletContext().log(iox.getMessage());<br \/>\n  }<br \/>\n }<br \/>\n \/\/Clean up resources<br \/>\n public void destroy() {<br \/>\n }<br \/>\n}<\/p>\n<p>\u4e0b\u9762\u662f\u5728web.xml\u91cc\u7684\u914d\u7f6e\uff1a<br \/>\n\uff08\u6211\u7684\u662fJbuilder\u81ea\u52a8\u751f\u6210\u7684\uff09<br \/>\n <filter><br \/>\n  <filter-name>servfilter<\/filter-name><br \/>\n  <filter-class>beanservlettest.servfilter<\/filter-class><br \/>\n <\/filter><br \/>\n <filter-mapping><br \/>\n  <filter-name>servfilter<\/filter-name><\/p>\n<p>\u672c\u6587\u5185\u5bb9\u8f6c\u8f7d\u81eahttp:\/\/blog.sina.com.cn\/s\/blog_5ce5700e0100bb6i.html<br \/>\n  <url-pattern>\/*<\/url-pattern>   \/\/\/\u8fd9\u91cc\u8868\u793a\u5bf9\u6574\u4e2a\u7f51\u7ad9\u90fd\u6709\u6548<br \/>\n <\/filter-mapping><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728b\/s\u7ed3\u6784\u7684\u7a0b\u5e8f\u4e2d\uff0c\u6709\u65f6\u6211\u4eec\u5e0c\u671b\u9875\u9762\u7684\u5185\u5bb9\u4e0d\u8981\u7f13\u5b58\u5230\u5ba2\u6237\u7aef\u3002\u4f8b\u5982\u76ee\u524d\u6d41\u884c\u7684\u89c6\u9891\u7f51\u7ad9\uff0c\u5982\u679c\u89c6\u9891\u88ab\u7f13\u5b58\u5230\u5ba2\u6237\u7aef\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-22","post","type-post","status-publish","format-standard","hentry","category-life"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.espandy.com\/index.php?rest_route=\/wp\/v2\/posts\/22","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.espandy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.espandy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.espandy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.espandy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22"}],"version-history":[{"count":1,"href":"https:\/\/www.espandy.com\/index.php?rest_route=\/wp\/v2\/posts\/22\/revisions"}],"predecessor-version":[{"id":23,"href":"https:\/\/www.espandy.com\/index.php?rest_route=\/wp\/v2\/posts\/22\/revisions\/23"}],"wp:attachment":[{"href":"https:\/\/www.espandy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.espandy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.espandy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}