{"id":1287,"date":"2026-01-10T10:20:38","date_gmt":"2026-01-10T02:20:38","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=1287"},"modified":"2026-01-10T10:20:38","modified_gmt":"2026-01-10T02:20:38","slug":"servlet%e4%b8%8ejsp%e4%bd%bf%e7%94%a8%e7%ae%80%e4%bb%8b%e5%8f%8a%e5%8c%ba%e5%88%ab%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2026\/01\/10\/servlet%e4%b8%8ejsp%e4%bd%bf%e7%94%a8%e7%ae%80%e4%bb%8b%e5%8f%8a%e5%8c%ba%e5%88%ab%e8%af%a6%e8%a7%a3\/","title":{"rendered":"Servlet\u4e0eJSP\u4f7f\u7528\u7b80\u4ecb\u53ca\u533a\u522b\u8be6\u89e3"},"content":{"rendered":"\n

\u4e0b\u9762\u6211\u7528\u901a\u4fd7 + \u5b9e\u6218 + \u9762\u8bd5\u53cb\u597d<\/strong>\u7684\u65b9\u5f0f\uff0c\u7cfb\u7edf\u8bb2\u6e05\u695a Servlet \u4e0e JSP \u7684\u4f7f\u7528\u7b80\u4ecb\u53ca\u533a\u522b<\/strong>\uff0c\u975e\u5e38\u9002\u5408\u4f60\u5f53\u524d\u5728\u5b66 Java Web \/ JSP + Servlet \u9879\u76ee<\/strong> \u7684\u9636\u6bb5\u3002<\/p>\n\n\n\n

\n\n\n\n

\u4e00\u3001\u4ec0\u4e48\u662f Servlet\uff1f<\/h1>\n\n\n\n

1\ufe0f\u20e3 Servlet \u7b80\u4ecb<\/h2>\n\n\n\n

Servlet \u662f\u8fd0\u884c\u5728 Web \u670d\u52a1\u5668\u4e2d\u7684 Java \u7a0b\u5e8f<\/strong>\uff0c\u7528\u4e8e\u63a5\u6536\u6d4f\u89c8\u5668\u8bf7\u6c42\u3001\u5904\u7406\u4e1a\u52a1\u903b\u8f91\uff0c\u5e76\u8fd4\u56de\u54cd\u5e94\u3002<\/p>\n\n\n\n

\ud83d\udc49 \u672c\u8d28\uff1aJava \u7c7b<\/strong><\/p>\n\n\n

\npublic class HelloServlet extends HttpServlet {\n    protected void doGet(HttpServletRequest req, HttpServletResponse resp)\n            throws IOException {\n        resp.getWriter().write("Hello Servlet");\n    }\n}\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
2\ufe0f\u20e3 Servlet \u7684\u4e3b\u8981\u4f5c\u7528<\/h2>\n\n\n\n
\u2714 \u63a5\u6536\u8bf7\u6c42\uff08Request\uff09
\u2714 \u5904\u7406\u4e1a\u52a1\u903b\u8f91
\u2714 \u8c03\u7528\u6570\u636e\u5e93 \/ Service
\u2714 \u8f6c\u53d1\u6216\u91cd\u5b9a\u5411\u5230 JSP
\u2714 \u8fd4\u56de JSON \/ HTML<\/p>\n\n\n\n
\ud83d\udc49 Servlet \u662f\u63a7\u5236\u5668\uff08Controller\uff09<\/strong><\/p>\n\n\n\n
\n\n\n\n
3\ufe0f\u20e3 Servlet \u7684\u6267\u884c\u6d41\u7a0b<\/h2>\n\n\n
\n\u6d4f\u89c8\u5668\u8bf7\u6c42\n   \u2193\nTomcat \u63a5\u6536\n   \u2193\nServlet\uff08doGet \/ doPost\uff09\n   \u2193\n\u4e1a\u52a1\u5904\u7406\n   \u2193\n\u54cd\u5e94\u6d4f\u89c8\u5668\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
4\ufe0f\u20e3 Servlet \u7684\u7279\u70b9<\/h2>\n\n\n\n
\u7279\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
\u9762\u5411 Java<\/td>\u7eaf Java \u4ee3\u7801<\/td><\/tr>
\u53ef\u63a7\u6027\u5f3a<\/td>\u9002\u5408\u4e1a\u52a1\u5904\u7406<\/td><\/tr>
\u4e0d\u64c5\u957f\u9875\u9762<\/td>\u5199 HTML \u5f88\u75db\u82e6<\/td><\/tr>
\u7ebf\u7a0b\u5b89\u5168\u9700\u6ce8\u610f<\/td>\u591a\u7ebf\u7a0b\u5171\u4eab\u5b9e\u4f8b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n
\u4e8c\u3001\u4ec0\u4e48\u662f JSP\uff1f<\/h1>\n\n\n\n
1\ufe0f\u20e3 JSP \u7b80\u4ecb<\/h2>\n\n\n\n
JSP\uff08Java Server Pages\uff09\u662f\u7528\u4e8e\u751f\u6210\u52a8\u6001\u7f51\u9875\u7684\u6280\u672f<\/strong>\uff0c\u672c\u8d28\u4e0a\u662f Servlet \u7684\u4e00\u79cd\u8868\u73b0\u5f62\u5f0f<\/strong>\u3002<\/p>\n\n\n
\n&lt;%\n    out.println("Hello JSP");\n%>\n\n<\/pre><\/div>\n\n\n
\ud83d\udccc JSP \u5728\u7b2c\u4e00\u6b21\u8bbf\u95ee\u65f6\u4f1a\u88ab\u7f16\u8bd1\u6210 Servlet<\/strong><\/p>\n\n\n\n
\n\n\n\n
2\ufe0f\u20e3 JSP \u7684\u4e3b\u8981\u4f5c\u7528<\/h2>\n\n\n\n
\u2714 \u5c55\u793a\u6570\u636e\uff08\u9875\u9762\u6e32\u67d3\uff09
\u2714 \u63a5\u6536\u8bf7\u6c42\u53c2\u6570\uff08\u4e0d\u63a8\u8350\u5904\u7406\u4e1a\u52a1\uff09
\u2714 \u4f7f\u7528 EL \/ JSTL \u6e32\u67d3\u89c6\u56fe<\/p>\n\n\n\n
\ud83d\udc49 JSP \u662f\u89c6\u56fe\uff08View\uff09<\/strong><\/p>\n\n\n\n
\n\n\n\n
3\ufe0f\u20e3 JSP \u7684\u6267\u884c\u6d41\u7a0b<\/h2>\n\n\n
\n\u6d4f\u89c8\u5668\u8bf7\u6c42 JSP\n   \u2193\nTomcat \u5c06 JSP \u8f6c\u6210 Servlet\n   \u2193\n\u7f16\u8bd1\u6267\u884c\n   \u2193\n\u8fd4\u56de HTML\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
4\ufe0f\u20e3 JSP \u7684\u7279\u70b9<\/h2>\n\n\n\n
\u7279\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
\u5199 HTML \u65b9\u4fbf<\/td>\u9875\u9762\u53cb\u597d<\/td><\/tr>
\u6df7\u5408 Java<\/td>\u6613\u6df7\u4e71\uff08scriptlet\uff09<\/td><\/tr>
\u6027\u80fd\u7a33\u5b9a<\/td>\u7f16\u8bd1\u540e\u5373 Servlet<\/td><\/tr>
\u9002\u5408\u5c55\u793a<\/td>\u4e0d\u9002\u5408\u4e1a\u52a1\u903b\u8f91<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n
\u4e09\u3001Servlet \u4e0e JSP \u7684\u6838\u5fc3\u533a\u522b\uff08\u91cd\u70b9\uff09<\/h1>\n\n\n\n
1\ufe0f\u20e3 \u672c\u8d28\u533a\u522b<\/h2>\n\n\n\n
\u5bf9\u6bd4\u9879<\/th>Servlet<\/th>JSP<\/th><\/tr><\/thead>
\u672c\u8d28<\/td>Java \u7c7b<\/td>Servlet<\/td><\/tr>
\u4e3b\u8981\u804c\u8d23<\/td>\u4e1a\u52a1\u5904\u7406<\/td>\u9875\u9762\u5c55\u793a<\/td><\/tr>
\u7f16\u5199\u65b9\u5f0f<\/td>Java + \u8f93\u51fa HTML<\/td>HTML + Java<\/td><\/tr>
\u4f7f\u7528\u573a\u666f<\/td>Controller<\/td>View<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n
2\ufe0f\u20e3 \u4f7f\u7528\u65b9\u5f0f\u5bf9\u6bd4<\/h2>\n\n\n\n
Servlet \u5199\u9875\u9762\uff08\u5f88\u96be\u53d7\uff09<\/h3>\n\n\n
\nout.write("&lt;html>");\nout.write("&lt;body>");\nout.write("&lt;h1>Hello&lt;\/h1>");\nout.write("&lt;\/body>");\nout.write("&lt;\/html>");\n\n<\/pre><\/div>\n\n\n
JSP \u5199\u9875\u9762\uff08\u8212\u670d\uff09<\/h3>\n\n\n
\n&lt;h1>Hello&lt;\/h1>\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
3\ufe0f\u20e3 MVC \u5206\u5c42\u5bf9\u6bd4\uff08\u9762\u8bd5\u91cd\u70b9\uff09<\/h2>\n\n\n
\nModel    \u2192 JavaBean \/ Service \/ DAO\nView     \u2192 JSP\nController \u2192 Servlet\n\n<\/pre><\/div>\n\n\n
\ud83d\udccc Servlet + JSP = \u7ecf\u5178 MVC \u6a21\u5f0f<\/strong><\/p>\n\n\n\n
\n\n\n\n
\u56db\u3001Servlet \u548c JSP \u7684\u534f\u4f5c\u65b9\u5f0f\uff08\u771f\u5b9e\u9879\u76ee\uff09<\/h1>\n\n\n\n
1\ufe0f\u20e3 \u6b63\u786e\u4f7f\u7528\u65b9\u5f0f \u2705<\/h2>\n\n\n\n
Servlet\uff08\u63a7\u5236\u5668\uff09<\/h3>\n\n\n
\nprotected void doGet(HttpServletRequest req, HttpServletResponse resp)\n        throws ServletException, IOException {\n\n    List&lt;User> users = userService.findAll();\n    req.setAttribute("users", users);\n\n    req.getRequestDispatcher("\/user.jsp").forward(req, resp);\n}\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
JSP\uff08\u89c6\u56fe\u5c42\uff09<\/h3>\n\n\n
\n&lt;c:forEach items="${users}" var="u">\n    &lt;p>${u.name}&lt;\/p>\n&lt;\/c:forEach>\n\n<\/pre><\/div>\n\n\n
\ud83d\udccc JSP \u53ea\u505a\u5c55\u793a\uff0c\u4e0d\u5199\u4e1a\u52a1\u903b\u8f91<\/strong><\/p>\n\n\n\n
\n\n\n\n
2\ufe0f\u20e3 \u9519\u8bef\u793a\u8303 \u274c\uff08\u521d\u5b66\u8005\u5e38\u72af\uff09<\/h2>\n\n\n
\n&lt;%\n    Connection conn = DriverManager.getConnection(...);\n    \/\/ \u5199 SQL\u3001\u4e1a\u52a1\u903b\u8f91\n%>\n\n<\/pre><\/div>\n\n\n
\ud83d\udca5 \u4e25\u91cd\u8fdd\u53cd MVC\uff0c\u7ef4\u62a4\u5730\u72f1<\/strong><\/p>\n\n\n\n
\n\n\n\n
\u4e94\u3001Servlet \u4e0e JSP \u751f\u547d\u5468\u671f\u5bf9\u6bd4<\/h1>\n\n\n\n
\u751f\u547d\u5468\u671f<\/th>Servlet<\/th>JSP<\/th><\/tr><\/thead>
\u521b\u5efa<\/td>init()<\/td>\u8f6c\u6362\u6210 Servlet<\/td><\/tr>
\u6267\u884c<\/td>service()<\/td>_jspService()<\/td><\/tr>
\u9500\u6bc1<\/td>destroy()<\/td>destroy()<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\ud83d\udccc JSP \u6700\u7ec8\u8fd8\u662f\u8d70 Servlet \u751f\u547d\u5468\u671f<\/p>\n\n\n\n
\n\n\n\n
\u516d\u3001\u4e3a\u4ec0\u4e48\u73b0\u5728\u201c\u5c11\u5199 JSP\u201d\uff1f<\/h1>\n\n\n\n
\u4f20\u7edf\u6a21\u5f0f<\/h3>\n\n\n
\nServlet + JSP\n\n<\/pre><\/div>\n\n\n
\u73b0\u4ee3\u6a21\u5f0f<\/h3>\n\n\n
\nSpring Boot + REST + Vue \/ React\n\n<\/pre><\/div>\n\n\n
\ud83d\udccc JSP \u5e38\u89c1\u7528\u9014\uff1a<\/p>\n\n\n\n
    \n
  • \u8001\u7cfb\u7edf\u7ef4\u62a4<\/li>\n\n\n\n
  • \u6559\u5b66 \/ \u57fa\u7840\u5b66\u4e60<\/li>\n\n\n\n
  • \u540e\u53f0\u7ba1\u7406\u7cfb\u7edf\uff08\u5185\u5d4c\uff09<\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n
    \u4e03\u3001Servlet \u4e0e JSP \u9762\u8bd5\u9ad8\u9891\u95ee\u7b54<\/h1>\n\n\n\n
    Q1\uff1aJSP \u662f\u4e0d\u662f Servlet\uff1f<\/h3>\n\n\n\n
    \u2705 \u662f\uff0c\u672c\u8d28\u662f Servlet<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    Q2\uff1a\u4e3a\u4ec0\u4e48 WHERE \u4e2d\u4e0d\u80fd\u5199\u4e1a\u52a1\u903b\u8f91\uff1f<\/h3>\n\n\n\n
    \u274c \u4e1a\u52a1\u903b\u8f91\u5e94\u8be5\u5728 Servlet \/ Service<\/p>\n\n\n\n
    \n\n\n\n
    Q3\uff1aJSP \u80fd\u8bbf\u95ee\u6570\u636e\u5e93\u5417\uff1f<\/h3>\n\n\n\n
    \u26a0\ufe0f \u80fd\uff0c\u4f46\u4e0d\u5e94\u8be5<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    Q4\uff1aforward \u548c redirect \u533a\u522b\uff1f<\/h3>\n\n\n\n
    \u9879\u76ee<\/th>forward<\/th>redirect<\/th><\/tr><\/thead>
    \u8bf7\u6c42\u6b21\u6570<\/td>1 \u6b21<\/td>2 \u6b21<\/td><\/tr>
    \u5730\u5740\u680f<\/td>\u4e0d\u53d8<\/td>\u6539\u53d8<\/td><\/tr>
    \u6570\u636e\u5171\u4eab<\/td>\u53ef<\/td>\u4e0d\u53ef<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \n\n\n\n
    \u516b\u3001\u4e00\u53e5\u8bdd\u603b\u7ed3\uff08\u80cc\u4e0b\u6765\uff09<\/h1>\n\n\n\n
    \n
    Servlet \u8d1f\u8d23\u201c\u505a\u4ec0\u4e48\u201d\uff0cJSP \u8d1f\u8d23\u201c\u600e\u4e48\u5c55\u793a\u201d<\/strong>
    Servlet \u662f\u63a7\u5236\u5668\uff0cJSP \u662f\u89c6\u56fe<\/strong><\/p>\n<\/blockquote>\n\n\n\n
    \u597d\uff0c\u90a3\u6211\u76f4\u63a5\u7ed9\u4f60\u6700\u5e38\u7528\u3001\u6700\u6709\u542b\u91d1\u91cf\u7684\u5b9e\u6218\uff1a
    \ud83d\udc49\u3010Servlet + JSP + MySQL \u767b\u5f55 & \u6ce8\u518c\u5b8c\u6574\u793a\u4f8b\uff08\u6807\u51c6 MVC\uff09\u3011<\/strong>
    \u8fd9\u662f\u5b66\u4e60 \/ \u4f5c\u4e1a \/ \u9762\u8bd5 \/ \u6bd5\u8bbe<\/strong>\u90fd\u80fd\u76f4\u63a5\u7528\u7684\u7248\u672c\u3002<\/p>\n\n\n\n
    \n\n\n\n
    \u4e00\u3001\u9879\u76ee\u7ed3\u6784\uff08\u6807\u51c6 MVC\uff09<\/h1>\n\n\n
    \nlogin-demo\/\n\u2502\n\u251c\u2500\u2500 src\/\n\u2502   \u251c\u2500\u2500 com.example.servlet\n\u2502   \u2502   \u251c\u2500\u2500 LoginServlet.java\n\u2502   \u2502   \u2514\u2500\u2500 RegisterServlet.java\n\u2502   \u2502\n\u2502   \u251c\u2500\u2500 com.example.dao\n\u2502   \u2502   \u2514\u2500\u2500 UserDao.java\n\u2502   \u2502\n\u2502   \u251c\u2500\u2500 com.example.entity\n\u2502   \u2502   \u2514\u2500\u2500 User.java\n\u2502\n\u251c\u2500\u2500 web\/\n\u2502   \u251c\u2500\u2500 login.jsp\n\u2502   \u251c\u2500\u2500 register.jsp\n\u2502   \u251c\u2500\u2500 success.jsp\n\u2502   \u2514\u2500\u2500 WEB-INF\/web.xml\n\n<\/pre><\/div>\n\n\n
    \ud83d\udccc \u804c\u8d23\u6e05\u6670\uff1a<\/strong><\/p>\n\n\n\n