{"id":351,"date":"2023-10-29T09:11:26","date_gmt":"2023-03-26T05:57:49","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/jstl%e6%95%99%e7%a8%8b%ef%bc%8cjstl%e6%a0%87%e7%ad%be%e7%a4%ba%e4%be%8b\/"},"modified":"2025-08-02T01:09:59","modified_gmt":"2025-08-01T17:09:59","slug":"jstl%e6%95%99%e7%a8%8b%ef%bc%8cjstl%e6%a0%87%e7%ad%be%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/jstl%e6%95%99%e7%a8%8b%ef%bc%8cjstl%e6%a0%87%e7%ad%be%e7%a4%ba%e4%be%8b\/","title":{"rendered":"JSTL\u5b8c\u5168\u6559\u7a0b\uff1a\u5e38\u7528\u6807\u7b7e\u793a\u4f8b\u4e0e\u5b9e\u6218\u5e94\u7528"},"content":{"rendered":"

\u8fd9\u662f\u6587\u7ae0\u300aJSTL\u6559\u7a0b\uff0cJSTL\u6807\u7b7e\u793a\u4f8b\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51712\u90e8\u5206\uff09\u3002<\/p>\n

JSTL\u662fJSP\u6807\u51c6\u6807\u7b7e\u5e93\uff08JavaServer Pages Standard Tag Library\uff09\u7684\u7f29\u5199\u3002\u5b83\u662f\u4e00\u4e2a\u63d0\u4f9b\u6807\u7b7e\u6765\u63a7\u5236JSP\u9875\u9762\u884c\u4e3a\u7684\u6807\u51c6\u6807\u7b7e\u5e93\u3002JSTL\u6807\u7b7e\u53ef\u7528\u4e8e\u8fed\u4ee3\u548c\u63a7\u5236\u8bed\u53e5\u3001\u56fd\u9645\u5316\u3001SQL\u64cd\u4f5c\u7b49\u3002\u6211\u4eec\u5c06\u5728\u672cJSTL\u6559\u7a0b\u4e2d\u8be6\u7ec6\u4ecb\u7ecdJSTL\u6807\u7b7e\u7684\u4f7f\u7528\u65b9\u6cd5\u3002\u4e4b\u524d\u6211\u4eec\u4e86\u89e3\u4e86\u5982\u4f55\u4f7f\u7528JSP EL\uff08\u8868\u8fbe\u5f0f\u8bed\u8a00\uff09\u548cJSP\u52a8\u4f5c\u6807\u7b7e\u6765\u7f16\u5199JSP\u4ee3\u7801\uff0c\u4f46\u5b83\u4eec\u7684\u529f\u80fd\u975e\u5e38\u6709\u9650\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u65e0\u6cd5\u4f7f\u7528EL\u6216\u52a8\u4f5c\u5143\u7d20\u5faa\u73af\u904d\u5386\u96c6\u5408\uff0c\u4e5f\u65e0\u6cd5\u8f6c\u4e49HTML\u6807\u7b7e\u4ee5\u5728\u5ba2\u6237\u7aef\u4ee5\u6587\u672c\u5f62\u5f0f\u663e\u793a\u5b83\u4eec\u3002\u8fd9\u5c31\u662fJSTL\u6807\u7b7e\u7684\u4f18\u52bf\u6240\u5728\uff0c\u56e0\u4e3a\u4f7f\u7528JSTL\u6807\u7b7e\u53ef\u4ee5\u5b9e\u73b0\u66f4\u591a\u529f\u80fd\u3002<\/p>\n

JSTL\u6982\u8ff0<\/h2>\n

JSTL\u662fJava EE API\u7684\u4e00\u90e8\u5206\uff0c\u5305\u542b\u5728\u5927\u591a\u6570Servlet\u5bb9\u5668\u4e2d\u3002\u4f46\u662f\u8981\u5728\u6211\u4eec\u7684JSP\u9875\u9762\u4e2d\u4f7f\u7528JSTL\uff0c\u6211\u4eec\u9700\u8981\u4e3aServlet\u5bb9\u5668\u4e0b\u8f7dJSTL\u7684JAR\u5305\u3002\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u4ee5\u5728\u670d\u52a1\u5668\u63d0\u4f9b\u7684\u793a\u4f8b\u9879\u76ee\u4e2d\u627e\u5230\u5b83\u4eec\u5e76\u76f4\u63a5\u4f7f\u7528\u3002\u60a8\u9700\u8981\u5c06\u8fd9\u4e9b\u5e93\u6587\u4ef6\u5305\u542b\u5728\u60a8\u7684Web\u5e94\u7528\u7a0b\u5e8f\u9879\u76ee\u7684WEB-INF\/lib\u76ee\u5f55\u4e2d\u3002<\/p>\n

JSTL\u7684JAR\u6587\u4ef6<\/h3>\n

\u5728\u4f7f\u7528Tomcat\u7b49\u5bb9\u5668\u65f6\uff0cJSTL JAR\u6587\u4ef6\u662f\u7279\u5b9a\u4e8e\u5bb9\u5668\u7684\u3002\u5728\u9879\u76ee\u7684\u6784\u5efa\u8def\u5f84\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u5305\u542bjstl.jar\u548cstandard.jar\u8fd9\u4e24\u4e2aJAR\u6587\u4ef6\u3002\u5982\u679c\u5b83\u4eec\u4e0d\u5728\u5bb9\u5668\u7684lib\u76ee\u5f55\u4e2d\uff0c\u60a8\u9700\u8981\u5c06\u5b83\u4eec\u5305\u542b\u5728\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u3002\u5982\u679c\u60a8\u6709\u4e00\u4e2aMaven\u9879\u76ee\uff0c\u5728pom.xml\u6587\u4ef6\u4e2d\u5e94\u6dfb\u52a0\u4ee5\u4e0b\u4f9d\u8d56\u5173\u7cfb\uff0c\u5426\u5219\u5728JSP\u9875\u9762\u4e2d\u4f1a\u51fa\u73b0\u4ee5\u4e0b\u9519\u8bef – Eclipse\u627e\u4e0d\u5230”https:\/\/java.sun.com\/jsp\/jstl\/core”\u6807\u7b7e\u5e93\u63cf\u8ff0\u7b26\u3002<\/p>\n

<dependency>\r\n\t<groupId>jstl<\/groupId>\r\n\t<artifactId>jstl<\/artifactId>\r\n\t<version>1.2<\/version>\r\n<\/dependency>\r\n<dependency>\r\n\t<groupId>taglibs<\/groupId>\r\n\t<artifactId>standard<\/artifactId>\r\n\t<version>1.1.2<\/version>\r\n<\/dependency>\r\n<\/code><\/pre>\n
JSTL\u6807\u7b7e\u5206\u7c7b<\/h3>\n
\u6839\u636e\u529f\u80fd\uff0cJSTL\u6807\u7b7e\u88ab\u5206\u4e3a\u4e94\u79cd\u7c7b\u578b\u3002<\/p>\n
    \n
  1. JSTL\u6838\u5fc3\u6807\u7b7e\uff1a<\/strong>JSTL\u6838\u5fc3\u6807\u7b7e\u63d0\u4f9b\u4e86\u5bf9\u8fed\u4ee3\u3001\u6761\u4ef6\u903b\u8f91\u3001\u5f02\u5e38\u6355\u83b7\u3001URL\u5904\u7406\u3001\u8f6c\u53d1\u6216\u91cd\u5b9a\u5411\u54cd\u5e94\u7b49\u7684\u652f\u6301\u3002\u8981\u4f7f\u7528JSTL\u6838\u5fc3\u6807\u7b7e\uff0c\u6211\u4eec\u9700\u8981\u5728JSP\u9875\u9762\u4e2d\u5305\u542b\u5b83\uff0c\u5982\u4e0b\u6240\u793a\uff1a
    \n\t<%@ taglib uri=”https:\/\/java.sun.com\/jsp\/jstl\/core” prefix=”c” %><\/li>\n
  2. JSTL\u683c\u5f0f\u5316\u548c\u672c\u5730\u5316\u6807\u7b7e\uff1a<\/strong>JSTL\u683c\u5f0f\u5316\u6807\u7b7e\u7528\u4e8e\u5bf9\u6570\u5b57\u3001\u65e5\u671f\u8fdb\u884c\u683c\u5f0f\u5316\uff0c\u5e76\u901a\u8fc7\u533a\u57df\u8bbe\u7f6e\u548c\u8d44\u6e90\u5305\u63d0\u4f9b\u56fd\u9645\u5316\u652f\u6301\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u5728JSP\u4e2d\u5305\u542b\u8fd9\u4e9bJSTL\u6807\u7b7e\uff1a
    \n\t<%@ taglib uri=”https:\/\/java.sun.com\/jsp\/jstl\/fmt” prefix=”fmt” %><\/li>\n
  3. JSTL SQL\u6807\u7b7e\uff1a<\/strong>JSTL SQL\u6807\u7b7e\u63d0\u4f9b\u4e0e\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff08\u5982Oracle\u3001MySQL\u7b49\uff09\u4ea4\u4e92\u7684\u652f\u6301\u3002\u4f7f\u7528JSTL SQL\u6807\u7b7e\uff0c\u6211\u4eec\u53ef\u4ee5\u8fd0\u884c\u6570\u636e\u5e93\u67e5\u8be2\u3002\u5728JSP\u4e2d\u5305\u542b\u8fd9\u4e9bJSTL\u6807\u7b7e\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a
    \n\t<%@ taglib uri=”https:\/\/java.sun.com\/jsp\/jstl\/sql” prefix=”sql” %><\/li>\n
  4. JSTL XML\u6807\u7b7e\uff1a<\/strong>JSTL XML\u6807\u7b7e\u7528\u4e8e\u5904\u7406XML\u6587\u6863\uff0c\u5982\u89e3\u6790XML\u3001\u8f6c\u6362XML\u6570\u636e\u548cXPath\u8868\u8fbe\u5f0f\u6c42\u503c\u7b49\u3002\u5728JSP\u9875\u9762\u4e2d\u5305\u542bJSTL XML\u6807\u7b7e\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a
    \n\t<%@ taglib uri=”https:\/\/java.sun.com\/jsp\/jstl\/xml” prefix=”x” %><\/li>\n
  5. JSTL\u51fd\u6570\u6807\u7b7e\uff1a<\/strong>JSTL\u51fd\u6570\u6807\u7b7e\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u5e38\u7528\u64cd\u4f5c\u7684\u51fd\u6570\uff0c\u5176\u4e2d\u5927\u90e8\u5206\u7528\u4e8e\u5b57\u7b26\u4e32\u64cd\u4f5c\uff0c\u5982\u5b57\u7b26\u4e32\u62fc\u63a5\u3001\u5b57\u7b26\u4e32\u5206\u5272\u7b49\u3002\u5728JSP\u9875\u9762\u4e2d\u5305\u542bJSTL\u51fd\u6570\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a
    \n\t<%@ taglib uri=”https:\/\/java.sun.com\/jsp\/jstl\/functions” prefix=”fn” %><\/li>\n<\/ol>\n
    \u8bf7\u6ce8\u610f\uff0c\u6240\u6709JSTL\u6807\u51c6\u6807\u7b7e\u7684URI\u90fd\u4ee5https:\/\/java.sun.com\/jsp\/jstl\/\u5f00\u5934\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u524d\u7f00\uff0c\u4f46\u6700\u597d\u4f7f\u7528\u4e0a\u8ff0\u5b9a\u4e49\u7684\u524d\u7f00\uff0c\u56e0\u4e3a\u8fd9\u662f\u901a\u7528\u6807\u51c6\uff0c\u4f7f\u7528\u5b83\u4eec\u53ef\u4ee5\u907f\u514d\u6df7\u6dc6\u3002<\/p>\n
    JSTL\u6838\u5fc3\u6807\u7b7e<\/h3>\n
    \u4ee5\u4e0b\u8868\u683c\u5217\u51fa\u4e86\u5e38\u7528\u7684JSTL\u6838\u5fc3\u6807\u7b7e\uff1a<\/p>\n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    JSTL\u6838\u5fc3\u6807\u7b7e<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
    <c:out><\/td>\n\u7528\u4e8e\u5728JSP\u9875\u9762\u4e2d\u8f93\u51fa\u5185\u5bb9\uff0c\u53ef\u4ee5\u4e0eEL\u8868\u8fbe\u5f0f\u7ed3\u5408\u4f7f\u7528<\/td>\n<\/tr>\n
    <c:import><\/td>\n\u7c7b\u4f3c\u4e8e<jsp:include>\u6216include\u6307\u4ee4\uff0c\u7528\u4e8e\u5bfc\u5165\u5176\u4ed6\u8d44\u6e90<\/td>\n<\/tr>\n
    <c:redirect><\/td>\n\u5c06\u8bf7\u6c42\u91cd\u5b9a\u5411\u5230\u53e6\u4e00\u4e2a\u8d44\u6e90<\/td>\n<\/tr>\n
    <c:set><\/td>\n\u5728\u6307\u5b9a\u4f5c\u7528\u57df\u4e2d\u8bbe\u7f6e\u53d8\u91cf\u503c<\/td>\n<\/tr>\n
    <c:remove><\/td>\n\u4ece\u6307\u5b9a\u4f5c\u7528\u57df\u4e2d\u79fb\u9664\u53d8\u91cf<\/td>\n<\/tr>\n
    <c:catch><\/td>\n\u6355\u83b7\u5f02\u5e38\u5e76\u5c06\u5176\u5305\u88c5\u5230\u4e00\u4e2a\u5bf9\u8c61\u4e2d<\/td>\n<\/tr>\n
    <c:if><\/td>\n\u7b80\u5355\u7684\u6761\u4ef6\u903b\u8f91\u6807\u7b7e\uff0c\u53ef\u4e0eEL\u7ed3\u5408\u4f7f\u7528\uff0c\u4e5f\u53ef\u7528\u4e8e\u5904\u7406<c:catch>\u6355\u83b7\u7684\u5f02\u5e38<\/td>\n<\/tr>\n
    <c:choose><\/td>\n\u7b80\u5355\u7684\u6761\u4ef6\u6807\u7b7e\uff0c\u4e3a\u4e92\u65a5\u7684\u6761\u4ef6\u64cd\u4f5c\u5efa\u7acb\u4e0a\u4e0b\u6587\uff0c\u7531<c:when>\u548c<c:otherwise>\u6807\u8bb0<\/td>\n<\/tr>\n
    <c:when><\/td>\n<c:choose>\u7684\u5b50\u6807\u7b7e\uff0c\u5f53\u5176\u6761\u4ef6\u8ba1\u7b97\u4e3a’true’\u65f6\u5305\u542b\u5176\u4e3b\u4f53\u5185\u5bb9<\/td>\n<\/tr>\n
    <c:otherwise><\/td>\n<c:choose>\u7684\u5b50\u6807\u7b7e\uff0c\u5f53\u6240\u6709\u6761\u4ef6\u8ba1\u7b97\u4e3a’false’\u65f6\u5305\u542b\u5176\u4e3b\u4f53\u5185\u5bb9<\/td>\n<\/tr>\n
    <c:forEach><\/td>\n\u7528\u4e8e\u904d\u5386\u96c6\u5408<\/td>\n<\/tr>\n
    <c:forTokens><\/td>\n\u7528\u4e8e\u904d\u5386\u7531\u5206\u9694\u7b26\u5206\u9694\u7684\u6807\u8bb0<\/td>\n<\/tr>\n
    <c:param><\/td>\n\u4e0e<c:import>\u4e00\u8d77\u4f7f\u7528\u4ee5\u4f20\u9012\u53c2\u6570<\/td>\n<\/tr>\n
    <c:url><\/td>\n\u7528\u4e8e\u521b\u5efa\u5e26\u6709\u53ef\u9009\u67e5\u8be2\u5b57\u7b26\u4e32\u53c2\u6570\u7684URL<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    JSTL\u6559\u7a0b\u793a\u4f8b<\/h3>\n
    \u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u7b80\u5355\u7684Web\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528JSTL\u6838\u5fc3\u6807\u7b7e\u7684\u793a\u4f8b\u3002\u6211\u4eec\u7684\u9879\u76ee\u5c06\u5305\u62ec\u4e00\u4e2aJava Bean\uff0c\u521b\u5efa\u4e00\u4e2a\u5bf9\u8c61\u5217\u8868\u5e76\u8bbe\u7f6e\u4e00\u4e9b\u5c5e\u6027\uff0c\u8fd9\u4e9b\u5c5e\u6027\u5c06\u5728JSP\u9875\u9762\u4e2d\u4f7f\u7528\u3002JSP\u9875\u9762\u5c06\u5c55\u793a\u5982\u4f55\u8fed\u4ee3\u96c6\u5408\u3001\u4f7f\u7528EL\u8fdb\u884c\u6761\u4ef6\u903b\u8f91\u4ee5\u53ca\u4e00\u4e9b\u5176\u4ed6\u5e38\u89c1\u7528\u6cd5\u3002<\/p>\n
    JSTL\u6559\u7a0b – Java Bean\u7c7b<\/h3>\n
    package com.Olivia.model;\r\n\r\npublic class Employee {\r\n\r\n\tprivate int id;\r\n\tprivate String name;\r\n\tprivate String role;\r\n\t\r\n\tpublic Employee() {\r\n\t}\r\n\t\r\n\tpublic int getId() {\r\n\t\treturn id;\r\n\t}\r\n\t\r\n\tpublic void setId(int id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\t\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\t\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\t\r\n\tpublic String getRole() {\r\n\t\treturn role;\r\n\t}\r\n\t\r\n\tpublic void setRole(String role) {\r\n\t\tthis.role = role;\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
    JSTL\u6559\u7a0b – Servlet\u7c7b<\/h3>\n
    package com.Olivia.servlet;\r\n\r\nimport java.io.IOException;\r\nimport java.util.ArrayList;\r\nimport java.util.List;\r\n\r\nimport javax.servlet.RequestDispatcher;\r\nimport javax.servlet.ServletException;\r\nimport javax.servlet.annotation.WebServlet;\r\nimport javax.servlet.http.HttpServlet;\r\nimport javax.servlet.http.HttpServletRequest;\r\nimport javax.servlet.http.HttpServletResponse;\r\n\r\nimport com.Olivia.model.Employee;\r\n\r\n@WebServlet(\"\/HomeServlet\")\r\npublic class HomeServlet extends HttpServlet {\r\n\tprivate static final long serialVersionUID = 1L;\r\n       \r\n\t\/\/ \u5904\u7406GET\u8bf7\u6c42\r\n\tprotected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\r\n\t\t\/\/ \u521b\u5efa\u5458\u5de5\u5217\u8868\r\n\t\tList<Employee> empList = new ArrayList<Employee>();\r\n\t\tEmployee emp1 = new Employee();\r\n\t\temp1.setId(1); emp1.setName(\"\u5f20\u4e09\");emp1.setRole(\"\u5f00\u53d1\u4eba\u5458\");\r\n\t\tEmployee emp2 = new Employee();\r\n\t\temp2.setId(2); emp2.setName(\"\u674e\u56db\");emp2.setRole(\"\u7ecf\u7406\");\r\n\t\tempList.add(emp1);empList.add(emp2);\r\n\t\trequest.setAttribute(\"empList\", empList);\r\n\t\t\r\n\t\t\/\/ \u8bbe\u7f6eHTML\u6807\u7b7e\u6570\u636e\r\n\t\trequest.setAttribute(\"htmlTagData\", \"<br\/> \u521b\u5efa\u4e00\u4e2a\u65b0\u884c\u3002\");\r\n\t\trequest.setAttribute(\"url\", \"https:\/\/www.scdev.com\");\r\n\t\tRequestDispatcher rd = getServletContext().getRequestDispatcher(\"\/home.jsp\");\r\n\t\trd.forward(request, response);\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n
    JSTL \u6559\u7a0b – JSP\u9875\u9762home.jsp\u4ee3\u7801:<\/h3>\n
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