{"id":38542,"date":"2023-12-11T14:44:46","date_gmt":"2023-12-11T06:44:46","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=38542"},"modified":"2023-12-11T14:44:46","modified_gmt":"2023-12-11T06:44:46","slug":"%e8%af%b7%e9%97%ae%e5%a6%82%e4%bd%95%e5%9c%a8%e5%9f%ba%e4%ba%8ejava%e7%9a%84web%e9%a1%b9%e7%9b%ae%e4%b8%ad%e5%ae%9e%e7%8e%b0%e6%96%87%e4%bb%b6%e4%b8%8a%e4%bc%a0%e5%92%8c%e4%b8%8b%e8%bd%bd%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e8%af%b7%e9%97%ae%e5%a6%82%e4%bd%95%e5%9c%a8%e5%9f%ba%e4%ba%8ejava%e7%9a%84web%e9%a1%b9%e7%9b%ae%e4%b8%ad%e5%ae%9e%e7%8e%b0%e6%96%87%e4%bb%b6%e4%b8%8a%e4%bc%a0%e5%92%8c%e4%b8%8b%e8%bd%bd%ef%bc%9f\/","title":{"rendered":"\u8bf7\u95ee\u5982\u4f55\u5728\u57fa\u4e8eJava\u7684Web\u9879\u76ee\u4e2d\u5b9e\u73b0\u6587\u4ef6\u4e0a\u4f20\u548c\u4e0b\u8f7d\uff1f"},"content":{"rendered":"

“`” \u8003\u5bdf\u70b9\uff1a\u6587\u4ef6\u4f20\u8f93<\/p>\n

\u00a0<\/p>\n

\u5728Sevlet 3 \u4ee5\u524d\uff0cServlet API\u4e2d\u6ca1\u6709\u652f\u6301\u4e0a\u4f20\u529f\u80fd\u7684API\uff0c\u56e0\u6b64\u8981\u5b9e\u73b0\u4e0a\u4f20\u529f\u80fd\u9700\u8981\u5f15\u5165\u7b2c\u4e09\u65b9\u5de5\u5177\u4ecePOST\u8bf7\u6c42\u4e2d\u83b7\u5f97\u4e0a\u4f20\u7684\u9644\u4ef6\u6216\u8005\u901a\u8fc7\u81ea\u884c\u5904\u7406\u8f93\u5165\u6d41\u6765\u83b7\u5f97\u4e0a\u4f20\u7684\u6587\u4ef6\uff0c\u6211\u4eec\u63a8\u8350\u4f7f\u7528Apache\u7684commons-fileupload\u3002
\n\u4eceServlet 3\u5f00\u59cb\uff0c\u6587\u4ef6\u4e0a\u4f20\u53d8\u5f97\u7b80\u5355\u8bb8\u591a\u3002<\/p>\n

\u4f8b\u5982\uff1a<\/p>\n

<pre><code class=""language-java"" lang=""java"">package
\ncom.jackfrued.servlet;
\n import java.io.IOException;
\n import javax.servlet.ServletException;
\n import javax.servlet.annotation.MultipartConfig;
\n import javax.servlet.annotation.WebServlet;
\n import javax.servlet.http.HttpServlet;
\n import javax.servlet.http.HttpServletRequest;
\n import javax.servlet.http.HttpServletResponse;
\n import javax.servlet.http.Part;
\n @WebServlet(""\/UploadServlet"")
\n @MultipartConfig
\n public class UploadServlet extends HttpServlet {
\n private static final long serialVersionUID = 1L;
\n protected void doPost(HttpServletRequest request,<\/p>\n

HttpServletResponse response) throws ServletException, IOException {
\n \/\/ \u53ef\u4ee5\u7528request.getPart()\u65b9\u6cd5\u83b7\u5f97\u540d\u4e3aphoto\u7684\u4e0a\u4f20\u9644\u4ef6
\n \/\/ \u4e5f\u53ef\u4ee5\u7528request.getParts()\u83b7\u5f97\u6240\u6709\u4e0a\u4f20\u9644\u4ef6\uff08\u591a\u6587\u4ef6\u4e0a\u4f20\uff09
\n \/\/ \u7136\u540e\u901a\u8fc7\u5faa\u73af\u5206\u522b\u5904\u7406\u6bcf\u4e00\u4e2a\u4e0a\u4f20\u7684\u6587\u4ef6
\n Part part = request.getPart(""photo"");
\n if (part != null &&
\npart.getSubmittedFileName().length() > 0) {
\n \/\/ \u7528ServletContext\u5bf9\u8c61\u7684getRealPath()\u65b9\u6cd5\u83b7\u5f97\u4e0a\u4f20\u6587\u4ef6\u5939\u7684\u7edd\u5bf9\u8def\u5f84
\n String
\nsavePath = request.getServletContext().getRealPath(""\/upload"");
\n \/\/ Servlet
\n3.1\u89c4\u8303\u4e2d\u53ef\u4ee5\u7528Part\u5bf9\u8c61\u7684getSubmittedFileName()\u65b9\u6cd5\u83b7\u5f97\u4e0a\u4f20\u7684\u6587\u4ef6\u540d
\n \/\/ \u66f4\u597d\u7684\u505a\u6cd5\u662f\u4e3a\u4e0a\u4f20\u7684\u6587\u4ef6\u8fdb\u884c\u91cd\u547d\u540d\uff08\u907f\u514d\u540c\u540d\u6587\u4ef6\u7684\u76f8\u4e92\u8986\u76d6\uff09<\/p>\n

part.write(savePath + ""\/"" + part.getSubmittedFileName());<\/p>\n

request.setAttribute(""hint"", ""Upload Successfully!"");
\n } else {
\n request.setAttribute(""hint"",
\n""Upload failed!"");
\n }
\n \/\/ \u8df3\u8f6c\u56de\u5230\u4e0a\u4f20\u9875\u9762<\/p>\n

request.getRequestDispatcher(""index.jsp"").forward(request, response);
\n }
\n }
\n<\/code><\/pre><\/p>\n

\u00a0<\/p>\n

<pre><code> "“`
\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"

“`” \u8003\u5bdf\u70b9\uff1a\u6587\u4ef6\u4f20\u8f93 \u00a0 \u5728Sevlet 3 \u4ee5\u524d\uff0cServlet API\u4e2d\u6ca1\u6709\u652f […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-38542","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/38542","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\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=38542"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/38542\/revisions"}],"predecessor-version":[{"id":38543,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/38542\/revisions\/38543"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=38542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=38542"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=38542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}