{"id":412155,"date":"2024-02-21T14:58:51","date_gmt":"2024-02-21T06:58:51","guid":{"rendered":"https:\/\/www.idc.net\/help\/412155\/"},"modified":"2024-02-21T14:58:51","modified_gmt":"2024-02-21T06:58:51","slug":"jsf%e7%9a%84%e5%b7%a5%e4%bd%9c%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/412155\/","title":{"rendered":"JSF\u7684\u5de5\u4f5c\u65b9\u5f0f"},"content":{"rendered":"

1.JSF\u7684\u5de5\u4f5c\u65b9\u5f0f<\/font><\/strong><\/p>\n

JSF\u5e94\u7528\u662f\u901a\u8fc7\u5904\u7406\u7531\u9875\u9762\u4e2d\u7ec4\u4ef6\u89e6\u53d1\u7684\u4e8b\u4ef6\u6765\u5de5\u4f5c\u7684\u3002\u8fd9\u4e9b\u4e8b\u4ef6\u662f\u7531\u7528\u6237\u7684\u52a8\u4f5c\u5f15\u8d77\u7684\u3002\u6bd4\u5982\uff0c\u5f53\u7528\u6237\u5355\u51fb\u4e00\u4e2a\u6309\u94ae\u65f6\uff0c\u6309\u94ae\u4f1a\u89e6\u53d1\u4e00\u4e2a\u4e8b\u4ef6\uff0c\u901a\u8fc7\u7f16\u5199\u76d1\u542c\u8fd9\u4e2a\u4e8b\u4ef6\u7684\u76d1\u542c\u5668\uff0cJSF\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u51b3\u5b9a\u5f53\u7279\u5b9a\u4e8b\u4ef6\u53d1\u751f\u65f6JSF\u5e94\u7528\u5e94\u8be5\u505a\u4ec0\u4e48\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cJSF\u5e94\u7528\u662f\u4e8b\u4ef6\u9a71\u52a8\u7684\u3002\u56fe1\u8bf4\u660e\u4e86JSF\u5e94\u7528\u7684\u5904\u7406\u8fc7\u7a0b\u3002<\/p>\n

\u56fe1  JSF\u5e94\u7528\u662f\u4e8b\u4ef6\u9a71\u52a8\u7684 <\/p>\n

\u5f53\u4e00\u4e2a\u4e8b\u4ef6\u53d1\u751f\u65f6(\u6bd4\u5982\uff0c\u7528\u6237\u5355\u51fb\u4e86\u4e00\u4e2a\u6309\u94ae)\uff0c\u4e8b\u4ef6\u901a\u77e5\u901a\u8fc7HTTP\u53d1\u5f80\u670d\u52a1\u5668\u3002\u670d\u52a1\u5668\u7aef\u4f7f\u7528\u53eb\u4f5cFacesServlet\u7684\u7279\u6b8aservlet\u5904\u7406\u8be5\u901a\u77e5\u3002Web\u5bb9\u5668\u91cc\u7684\u6bcf\u4e2aJSF\u5e94\u7528\u90fd\u6709\u5b83\u81ea\u5df1\u7684FacesServlet\u3002
\u5728\u540e\u53f0\uff0c\u6bcf\u4e2aJSF\u8bf7\u6c42\u90fd\u89e6\u53d13\u4ef6\u4e8b\u60c5\uff0c\u5982\u56fe2 JSF\u7684\u5de5\u4f5c\u65b9\u5f0f\u3002<\/p>\n

\u56fe2  JSF\u7684\u5de5\u4f5c\u65b9\u5f0f <\/p>\n

\u4e3a\u4e86\u5904\u7406JSF\u8bf7\u6c42\uff0c\u5b83\u4eec\u5fc5\u987b\u4ea4\u7531FacesServlet\u5904\u7406\uff0c\u6307\u5b9a\u8fd9\u79cd\u91cd\u5b9a\u5411\u662f\u901a\u8fc7\u90e8\u7f72\u63cf\u8ff0\u7b26\u4e2d\u7684servlet\u548cservlet-mapping\u6807\u8bb0\u6765\u5b9e\u73b0\u7684\u3002<\/p>\n

    \n
  1. <!-- Faces Servlet --><\/font>  <\/span><\/span><\/span><\/li>\n
  2. <servlet><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/li>\n
  3. <servlet-name><\/span><\/span><\/span><\/font><\/strong>Faces Servlet<\/servlet-name><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
  4. <servlet-class><\/span><\/span><\/span><\/font><\/strong>javax.faces.webapp.FacesServlet<\/servlet-class><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
  5. <load-on-startup><\/span><\/span><\/span><\/font><\/strong>1<\/load-on-startup><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
  6. <\/servlet><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/li>\n
  7. <!-- Faces Servlet Mapping --><\/font>  <\/span><\/span><\/span><\/li>\n
  8. <servlet-mapping><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/li>\n
  9. <servlet-name><\/span><\/span><\/span><\/font><\/strong>Faces Servlet<\/servlet-name><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
  10. <url-pattern><\/span><\/span><\/span><\/font><\/strong>\/faces\/*<\/url-pattern><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
  11. <\/servlet-mapping><\/span><\/span><\/span><\/font><\/strong> <\/span><\/span><\/li>\n<\/ol>\n

    \u8fd9\u8868\u793a\u6240\u6709\u8bf7\u6c42\u7684URL\u4e2d\u90fd\u5fc5\u987b\u5305\u542b\/faces\/\u8fd9\u4e2a\u5b57\u7b26\u4e32\u6a21\u5f0f\uff0cservlet-mapping\u5143\u7d20\u4e0b\u7684url-pattern\u5143\u7d20\u6307\u5b9a\u4e86\u8fd9\u4e00\u70b9\u3002\u6ce8\u610f\uff1a<\/p>\n

    \u53ef\u4ee5\u6307\u5b9a\u4e00\u4e2a\u4e0a\u4e0b\u6587\u53c2\u6570saveStateInClient\u5e76\u8d4b\u7ed9\u5b83\u4e00\u4e2atrue\u503c\uff0c\u4ee5\u6b64\u6765\u5f3a\u5236JSF\u628a\u72b6\u6001\u5b58\u653e\u5728\u5ba2\u6237\u7aef\u800c\u4e0d\u662f\u670d\u52a1\u5668\u7aef\u3002\u5982\u679c\u60a8\u6253\u7b97\u8fd9\u4e48\u505a\uff0c\u5fc5\u987b\u5728\u90e8\u7f72\u63cf\u8ff0\u7b26\u4e2d\u7684servlet\u5143\u7d20\u4e4b\u524d\u52a0\u5165\u5982\u4e0b\u7684context-param\u5143\u7d20\u3002<\/p>\n

      \n
    1. <context-param><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/li>\n
    2. <param-name><\/span><\/span><\/span><\/font><\/strong>saveStateInClient<\/param-name><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
    3. <param-value><\/span><\/span><\/span><\/font><\/strong>false<\/param-value><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
    4. <\/context-param><\/span><\/span><\/span><\/font><\/strong> <\/span><\/span><\/li>\n<\/ol>\n

      FacesServlet\u751f\u6210\u4e00\u4e2a\u53eb\u4f5cFacesContext\u7684\u5bf9\u8c61\uff0c\u5b83\u5305\u542b\u4e86\u5904\u7406\u8bf7\u6c42\u6240\u5fc5\u987b\u7684\u4fe1\u606f\u3002\u66f4\u786e\u5207\u5730\u8bf4\uff0cFacesContext\u5bf9\u8c61\u4e2d\u5305\u542bWeb\u5bb9\u5668\u4f20\u7ed9FacesServlet\u7684services\u65b9\u6cd5\u7684 ServletContext\u3001ServletRequest\u53caServletResponse\u5bf9\u8c61\u3002\u5728\u5904\u7406\u8fc7\u7a0b\u4e2d\uff0c\u4e3b\u8981\u4fee\u6539\u7684\u5c31\u662f\u8fd9\u4e2a FacesContext\u5bf9\u8c61\u3002\u63a5\u7740\u5c31\u662f\u5904\u7406\uff0c\u5904\u7406\u5668\u662f\u4e00\u4e2a\u53eb\u4f5cLifecycle\u7684\u5bf9\u8c61\u3002FacesServlet\u628a\u63a7\u5236\u6743\u8f6c\u4ea4\u7ed9Lifecycle\uff0cLifecycle\u5bf9\u8c61\u52066\u4e2a\u9636\u6bb5\u6765\u5904\u7406FacesContext\u5bf9\u8c61\uff0c\u6211\u4eec\u7a0d\u540e\u5c06\u4f1a\u770b\u5230\u8fd9\u4e9b\u9636\u6bb5\u3002\u6ce8\u610f\uff1a<\/p>\n

      Lifecycle\u5bf9\u8c61\u5904\u7406JSP\u8bf7\u6c42\u6240\u9700\u7684\u4e00\u7cfb\u5217\u52a8\u4f5c\u79f0\u4e3a\u8bf7\u6c42\u5904\u7406\u751f\u547d\u5468\u671f(request processing lifecycle)\uff0c\u8fd9\u4e2a\u8bcd\u81ea\u59cb\u81f3\u7ec8\u8d2f\u7a7f\u672c\u4e66\u3002<\/p>\n

      JSF\u7684\u5de5\u4f5c\u65b9\u5f0f<\/font>\u5141\u8bb8\u4f7f\u7528\u4e00\u4e2a\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u6765\u914d\u7f6eJSF\u5e94\u7528\u3002\u8ba8\u8bba\u8fc7Lifecycle\u5bf9\u8c61\u7684\u5904\u7406\u9636\u6bb5\u540e\uff0c\u6211\u4eec\u4f1a\u8ba8\u8bba\u5982\u4f55\u4f7f\u7528\u8fd9\u4e2a\u914d\u7f6e\u6587\u4ef6\u6765\u6ce8\u518cJavaBeans\u3002<\/p>\n

      2.\u7406\u89e3\u8bf7\u6c42\u5904\u7406\u751f\u547d\u5468\u671f\u7684\u5404\u4e2a\u9636\u6bb5<\/strong><\/p>\n

      Lifecycle\u5bf9\u8c61\u52066\u4e2a\u9636\u6bb5\u6765\u5904\u7406JSF\u8bf7\u6c42(\u88ab\u5c01\u88c5\u5728FacesContext\u5bf9\u8c61\u91cc\uff0c\u800cFacesContext\u5bf9\u8c61\u5c31\u662f\u5904\u7406\u8fc7\u7a0b\u4e2d\u7531Lifecycle\u8bfb\u53d6\u5e76\u4fee\u6539\u7684\u5bf9\u8c61)\uff0c\u8fc7\u7a0b\u5982\u4e0b\uff1a
      \u25c6\u91cd\u5efa\u7ec4\u4ef6\u6811 JSF\u5e94\u7528\u91cc\u7684JSP\u9875\u9762\u88ab\u8868\u793a\u6210\u4e00\u4e2a\u7ec4\u4ef6\u6811\u3002\u5728\u8fd9\u4e2a\u9636\u6bb5\uff0c\u901a\u8fc7\u91cd\u5efa\u8fd9\u68f5\u6811\u6765\u5f00\u59cbLifecycle\u7684\u5904\u7406\u8fc7\u7a0b\u3002\u6bcf\u4e2a\u7ec4\u4ef6\u6811\u90fd\u6709\u4e00\u4e2a\u5728\u6574\u4e2a\u5e94\u7528\u8303\u56f4\u91cc\u60df\u4e00\u7684\u6807\u8bc6\u7b26\uff0c\u6b64\u6807\u8bc6\u7b26\u662f\u6240\u8bf7\u6c42URI\u7684\u8def\u5f84\u4fe1\u606f\u90e8\u5206\u3002\u6bd4\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2aURI\u4e3a\/faces\/index.jsp\u7684\u8bf7\u6c42\uff0c\u7ec4\u4ef6\u6811\u7684\u6807\u8bc6\u7b26\u5c31\u662f \/index.jsp\u3002\u751f\u6210\u7684\u7ec4\u4ef6\u6811\u4fdd\u5b58\u5728FacesContext\u5bf9\u8c61\u4e2d\uff0c\u4ee5\u5907\u540e\u9762\u7684\u5904\u7406\u8fc7\u7a0b\u6240\u7528\u3002
      \u25c6\u5e94\u7528\u8bf7\u6c42\u503c \u5728\u8fd9\u4e2a\u9636\u6bb5\uff0c\u4f7f\u7528\u8bf7\u6c42\u91cc\u7684\u5f53\u524d\u503c\u6765\u66f4\u65b0\u6bcf\u4e2a\u7ec4\u4ef6\u7684\u672c\u5730\u503c\u3002\u8fd9\u4e9b\u503c\u53ef\u80fd\u6765\u81ea\u8bf7\u6c42\u53c2\u6570\u3001\u8bf7\u6c42\u7684\u62a5\u5934\u53cacookie\u7b49\u3002\u5728\u8fd9\u4e2a\u9636\u6bb5\u7684\u5904\u7406\u4e2d\uff0c\u7ec4\u4ef6\u53ef\u4ee5\u5f80\u4e8b\u4ef6\u961f\u5217\u91cc\u52a0\u5165\u67d0\u4e9b\u4e8b\u4ef6\uff0c\u8fd9\u4e9b\u4e8b\u4ef6\u53ef\u5728\u968f\u540e\u7684\u5904\u7406\u9636\u6bb5\u5904\u7406\u3002
      \u25c6\u5904\u7406\u9a8c\u8bc1 \u5f53\u6bcf\u4e2a\u7ec4\u4ef6\u7684\u672c\u5730\u503c\u88ab\u66f4\u65b0\u540e\uff0c\u5728\u6b64\u9636\u6bb5\u4e2d\uff0cLifecycle\u5bf9\u8c61\u4f1a\u9a8c\u8bc1\u8fd9\u4e9b\u503c\u7684\u5408\u6cd5\u6027\u3002\u8981\u6c42\u9a8c\u8bc1\u7684\u7ec4\u4ef6\u5fc5\u987b\u63d0\u4f9b\u9a8c\u8bc1\u903b\u8f91\u7684\u5b9e\u73b0\u3002\u4f5c\u4e3a\u9009\u62e9\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4e3a\u4e00\u4e2a\u7ec4\u4ef6\u6ce8\u518c\u96f6\u4e2a\u6216\u591a\u4e2a\u9a8c\u8bc1\u5668\u3002\u5982\u679c\u53d1\u73b0\u5916\u90e8\u9a8c\u8bc1\u5668\uff0c\u90a3\u4e48\u8fd8\u4f1a\u5e94\u7528\u8fd9\u4e9b\u5916\u90e8\u9a8c\u8bc1\u5668\u91cc\u7684\u9a8c\u8bc1\u903b\u8f91\u6765\u9a8c\u8bc1\u672c\u5730\u503c\u3002
      \u25c6\u66f4\u65b0\u6a21\u578b\u503c \u53ea\u6709\u5f53\u7ec4\u4ef6\u6811\u4e2d\u6240\u6709\u7ec4\u4ef6\u7684\u672c\u5730\u503c\u90fd\u901a\u8fc7\u9a8c\u8bc1\u540e\uff0c\u624d\u6709\u53ef\u80fd\u5230\u8fbe\u8be5\u9636\u6bb5\u3002\u5728\u8fd9\u4e2a\u9636\u6bb5\u91cc\uff0cLifeCycle\u66f4\u65b0\u5e94\u7528\u7684\u6a21\u578b\u6570\u636e\u3002\u7ec4\u4ef6\u5728\u8fd9\u4e2a\u9636\u6bb5\u4e5f\u53ef\u4ee5\u6392\u5217\u4e8b\u4ef6\u3002
      \u25c6\u8c03\u7528\u5e94\u7528 \u5728\u8fd9\u4e2a\u9636\u6bb5\uff0cJSF\u5b9e\u73b0\u5904\u7406\u6240\u6709\u5e94\u7528\u5c42\u6b21\u7684\u4e8b\u4ef6\uff0c\u6bd4\u5982\u63d0\u4ea4\u8868\u5355\u6216\u94fe\u63a5\u5230\u5176\u4ed6\u9875\u9762\u7b49\u3002
      \u25c6\u5448\u73b0\u54cd\u5e94 \u5728\u8fd9\u4e2a\u9636\u6bb5\uff0cJSF\u5b9e\u73b0\u5c06\u54cd\u5e94\u53d1\u56de\u5ba2\u6237\u7aef\u3002<\/p>\n

      \u7531\u4e8e\u8bf7\u6c42\u5904\u7406\u751f\u547d\u5468\u671f\u91cc\u7684\u5e94\u7528\u8bf7\u6c42\u503c\u3001\u5904\u7406\u9a8c\u8bc1\u3001\u66f4\u65b0\u6a21\u578b\u503c\u548c\u8c03\u7528\u5e94\u7528\u7b49\u9636\u6bb5\u90fd\u53ef\u4ee5\u5728\u5f53\u524d\u8bf7\u6c42\u5bf9\u5e94\u7684FacesConetxt\u7684\u5b9e\u4f8b\u91cc\u6392\u5217\u4e8b\u4ef6\uff0c\u56e0\u6b64\uff0cJSF\u5b9e\u73b0\u5fc5\u987b\u5728\u8fd9\u4e9b\u9636\u6bb5\u540e\u5904\u7406\u8fd9\u4e9b\u4e8b\u4ef6\u3002<\/p>\n

      \u5728\u4e24\u4e2a\u9636\u6bb5\u4e2d\u95f4\uff0cLifecycle\u5bf9\u8c61\u4f1a\u68c0\u67e5\u6240\u6709\u9700\u8981\u8c03\u7528\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u3002\u5f53\u7f16\u5199\u4e8b\u4ef6\u76d1\u542c\u5668\u65f6\uff0c\u9700\u8981\u9009\u62e9\u4e8b\u4ef6\u76d1\u542c\u5668\u5e94\u5728\u54ea\u4e2a\u9636\u6bb5\u8fc7\u540e\u8c03\u7528\u3002\u6216\u8005\uff0c\u4e5f\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u5728\u4e0d\u540c\u9636\u6bb5\u540e\u8c03\u7528\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u3002\u56fe3\u8868\u660e\u4e86\u5904\u7406JSF\u8bf7\u6c42\u7684\u5404\u4e2a\u9636\u6bb5\u3002\u6807\u6709\u201c\u5904\u7406\u4e8b\u4ef6\u201d\u7684\u65b9\u6846\u8868\u793aLifecycle\u5bf9\u8c61\u5728\u8be5\u5904\u6267\u884c\u4e8b\u4ef6\u76d1\u542c\u5668\u3002<\/p>\n

      \u56fe3  \u8bf7\u6c42\u5904\u7406\u751f\u547d\u5468\u671f\u7684\u5404\u4e2a\u9636\u6bb5<\/p>\n

      \u6ce8\u610f\uff0c\u4e8b\u4ef6\u76d1\u542c\u5668\u53ef\u80fd\u4f1a\u6539\u53d8\u5904\u7406\u8fc7\u7a0b\u3002\u5b83\u53ef\u4ee5\u6307\u793aLifecycle\u5bf9\u8c61\u76f4\u63a5\u8df3\u5230***\u4e00\u4e2a\u9636\u6bb5\uff0c\u6216\u662f\u5728\u5f53\u524d\u4e8b\u4ef6\u5904\u7406\u5b8c\u540e\u9a6c\u4e0a\u9000\u51fa\u3002<\/p>\n

      3.\u4f7f\u7528\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u6ce8\u518cJavaBeans<\/strong>
      \u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u5f88\u5bb9\u6613\u5730\u914d\u7f6eJSF\u5e94\u7528\u3002\u5728\u8fd9\u4e2a\u6587\u4ef6\u91cc\uff0c\u53ef\u4ee5\u6ce8\u518c\u5e94\u7528\u4e2d\u7528\u5230\u7684JavaBeans\uff0c\u901a\u8fc7\u6307\u5b9a\u9875\u9762\u5bfc\u822a\u89c4\u5219\u5b9a\u4e49\u7a0b\u5e8f\u63a7\u5236\u6d41\u7a0b\uff0c\u6ce8\u518c\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u53ca\u6267\u884c\u5176\u4ed6\u914d\u7f6e\u5de5\u4f5c\u7b49\u3002<\/p>\n

      \u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u662f\u4e00\u4e2aXML\u6587\u4ef6\uff0c\u53ef\u4ee5\u6709\u597d\u51e0\u79cd\u58f0\u660e\u65b9\u5f0f\u3002\u6700\u7b80\u5355\u7684\u65b9\u5f0f\u662f\u628a\u5b83\u653e\u5230WEB-INF\u76ee\u5f55\u4e2d\uff0c\u5e76\u4e14\u547d\u540d\u4e3afaces-config.xml\u3002\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u7684\u6839\u5143\u7d20\u662ffaces-config\u3002\u4e0b\u9762\u662f\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u7684\u6846\u67b6\uff1a<\/p>\n

        \n
      1. <?xml<\/span><\/span><\/font><\/strong> version<\/font>=\"1.0\"<\/font>?><\/font><\/strong>  <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/li>\n
      2. <!DOCTYPE faces-config PUBLIC   <\/span><\/li>\n
      3. \"-\/\/Sun Microsystems, Inc.\/\/DTD JavaServer Faces Config 1.0\/\/EN\"   <\/span><\/li>\n
      4. \"http:\/\/java.sun.com\/dtd\/web-facesconfig_1_0.dtd\"><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
      5. <faces-config><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/li>\n
      6. <\/faces-config><\/span><\/span><\/span><\/font><\/strong> <\/span><\/span><\/li>\n<\/ol>\n

        JSF\u5e94\u7528\u7684\u8bb8\u591a\u65b9\u9762\u90fd\u53ef\u4ee5\u901a\u8fc7\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u6765\u914d\u7f6e\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u4e3b\u8981\u5173\u6ce8\u5982\u4f55\u6ce8\u518cJavaBeans(\u7528\u4e8e\u672c\u7ae0\u7a0d\u540e\u7684\u4f8b\u5b50)\u3002\u7b2c15\u7ae0\u4f1a\u8be6\u7ec6\u8bb2\u89e3\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u3002\u5728\u4e00\u4e2aJSP\u9875\u9762\u91cc\uff0c\u53ef\u4ee5\u4f7f\u7528jsp:useBean\u52a8\u4f5c\u544a\u8bc9JSP\u5bb9\u5668\uff0c\u6b63\u5728\u4f7f\u7528jsp:useBean\u52a8\u4f5c\u7684class\u7279\u6027\u91cc\u6307\u5b9a\u7684JavaBean\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

          \n
        1. <jsp:useBean<\/span><\/span><\/font><\/strong> id<\/font>=\"numberBean\"<\/font> class<\/font>=\"ch02.NumberBean\"<\/font> scope<\/font>=\"session\"<\/font>\/><\/font><\/strong> <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/li>\n<\/ol>\n

          \u8fd9\u5c06\u544a\u8bc9Web\u5bb9\u5668\u88c5\u5165JavaBean\u7c7b\u5e76\u4e14\u5728JSP\u9875\u9762\u88ab\u8c03\u7528\u65f6\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b\u3002jsp:useBean\u52a8\u4f5c\u53ea\u9700\u8981\u5728\u4e00\u4e2a\u9875\u9762\u91cc\u58f0\u660e\uff0c\u800c\u5728\u540c\u4e00\u4e2a\u5e94\u7528\u7684\u6240\u6709JSP\u9875\u9762\u91cc\u53ef\u7528\u3002\u5728JSF\u5e94\u7528\u4e2d\u5141\u8bb8\u60a8\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u800c\u4e0d\u662f\u5728\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u4e2d\u6ce8\u518cJavaBean\u3002<\/p>\n

          \u4f7f\u7528<jsp:useBean>\u6709\u4e00\u4e2a\u7f3a\u70b9\uff0c\u5982\u679c\u4e00\u4e2a\u9875\u9762\u5728\u5305\u542bjsp:useBean\u52a8\u4f5c\u7684\u9875\u9762\u4e4b\u524d\u88ab\u8c03\u7528\uff0cWeb\u5bb9\u5668\u4f1a\u629b\u51fa\u4e00\u4e2a\u5f02\u5e38\u3002\u8fd9\u662f\u56e0\u4e3a\u8fd9\u4e2a\u9875\u9762\u8bd5\u56fe\u4f7f\u7528\u4e00\u4e2a\u5c1a\u672a\u521b\u5efa\u7684JavaBean\u3002\u800c\u4f7f\u7528\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u6ce8\u518c\u8be5JavaBean\u5c31\u4e0d\u4f1a\u6709\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n

          \u5bf9\u4e8e\u6bcf\u4e2a\u6253\u7b97\u5728\u5e94\u7528\u914d\u7f6e\u6587\u4ef6\u91cc\u6ce8\u518c\u7684JavaBean\uff0c\u4f7f\u7528faces-config\u5143\u7d20\u4e2d\u7684managed-bean\u6807\u8bb0\uff0c\u5728managed-bean\u5143\u7d20\u4e2d\u6709\u4e0b\u5217\u5b50\u5143\u7d20\uff1a
          \u25c6managed-bean-name \u6807\u8bb0\u5b9a\u4e49\u4eceJSP\u9875\u9762\u91cc\u5f15\u7528JavaBean\u65f6\u4f7f\u7528\u7684\u540d\u79f0\u3002
          \u25c6managed-bean-class\u5143\u7d20 \u6307\u660eJavaBean\u7c7b\u3002
          \u25c6managed-bean-scope\u5143\u7d20 \u5b9a\u4e49JavaBean\u7684\u4f5c\u7528\u57df\u3002
          \u4e0b\u9762\u662fmanaged-bean\u7684\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n

            \n
          1. <managed-bean><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/li>\n
          2. <managed-bean-name><\/span><\/span><\/span><\/font><\/strong>myBean<\/managed-bean-name><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
          3. <managed-bean-class><\/span><\/span><\/span><\/font><\/strong>myPackage.MyBean<\/managed-bean-class><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
          4. <managed-bean-scope><\/span><\/span><\/span><\/font><\/strong>session<\/managed-bean-scope><\/span><\/span><\/span><\/font><\/strong>  <\/span><\/span><\/span><\/li>\n
          5. <\/managed-bean><\/span><\/span><\/span><\/font><\/strong> <\/span><\/span><\/li>\n<\/ol>\n

            \u672c\u4f8b\u4e2d\u7684managed-bean\u5143\u7d20\u5b9a\u4e49\u4e86\u4e00\u4e2a\u7c7b\u578b\u4e3amyPackage.MyBean\u7684JavaBean\uff0c\u5728JSF\u5e94\u7528\u7684JSP\u9875\u9762\u91cc\u53ef\u4ee5\u7528\u540d\u79f0myBean\u6765\u5f15\u7528\u5b83\uff0c\u5b83\u7684\u4f5c\u7528\u57df\u662fsession\uff0c\u8868\u793a\u5f00\u59cb\u4e00\u4e2a\u7528\u6237\u4f1a\u8bdd\u65f6\u5c31\u521b\u5efa\u8fd9\u4e2abean\u7684\u4e00\u4e2a\u5b9e\u4f8b\u3002<\/p>\n

            \u3010\u7f16\u8f91\u63a8\u8350\u3011<\/p>\n

              \n
            1. \u7b80\u8ff0JSF\u5165\u95e8\u4ecb\u7ecd<\/font><\/li>\n
            2. JSF\u548cStruts\u7684\u533a\u522b\u6982\u8ff0<\/font><\/li>\n
            3. \u7f16\u5199JSF\u81ea\u5b9a\u4e49\u590d\u5408\u7ec4\u4ef6\u7684\u539f\u5219\u548c\u6280\u5de7<\/font><\/li>\n
            4. \u9009\u62e9JSF\u4e0d\u9009Struts\u7684\u5341\u5927\u7406\u7531<\/font><\/li>\n
            5. Tapestry\u548cJSF\u5bf9\u6bd4<\/font><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

              1.JSF\u7684\u5de5\u4f5c\u65b9\u5f0f JSF\u5e94\u7528\u662f\u901a\u8fc7\u5904\u7406\u7531\u9875\u9762\u4e2d\u7ec4\u4ef6\u89e6\u53d1\u7684\u4e8b\u4ef6\u6765\u5de5\u4f5c\u7684\u3002\u8fd9\u4e9b\u4e8b\u4ef6\u662f\u7531\u7528\u6237\u7684\u52a8\u4f5c\u5f15\u8d77\u7684\u3002\u6bd4\u5982\uff0c […]<\/p>\n","protected":false},"author":1,"featured_media":412156,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[],"class_list":["post-412155","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-website"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/412155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=412155"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/412155\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media\/412156"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=412155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=412155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=412155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}