{"id":253,"date":"2023-01-25T09:51:47","date_gmt":"2023-07-23T02:57:27","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/jsf%e9%aa%8c%e8%af%81%e7%a4%ba%e4%be%8b%e6%95%99%e7%a8%8b-%e9%aa%8c%e8%af%81%e5%99%a8%e6%a0%87%e7%ad%be%ef%bc%8c%e8%87%aa%e5%ae%9a%e4%b9%89%e9%aa%8c%e8%af%81%e5%99%a8%e3%80%82\/"},"modified":"2025-08-01T02:58:24","modified_gmt":"2025-07-31T18:58:24","slug":"jsf%e9%aa%8c%e8%af%81%e7%a4%ba%e4%be%8b%e6%95%99%e7%a8%8b-%e9%aa%8c%e8%af%81%e5%99%a8%e6%a0%87%e7%ad%be%ef%bc%8c%e8%87%aa%e5%ae%9a%e4%b9%89%e9%aa%8c%e8%af%81%e5%99%a8%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/jsf%e9%aa%8c%e8%af%81%e7%a4%ba%e4%be%8b%e6%95%99%e7%a8%8b-%e9%aa%8c%e8%af%81%e5%99%a8%e6%a0%87%e7%ad%be%ef%bc%8c%e8%87%aa%e5%ae%9a%e4%b9%89%e9%aa%8c%e8%af%81%e5%99%a8%e3%80%82\/","title":{"rendered":"JSF\u9a8c\u8bc1\u6df1\u5ea6\u89e3\u6790\uff1a\u4ece\u5185\u7f6e\u9a8c\u8bc1\u5668\u5230\u81ea\u5b9a\u4e49\u5b9e\u73b0"},"content":{"rendered":"

\u8fd9\u662f\u6587\u7ae0\u300aJSF\u9a8c\u8bc1\u793a\u4f8b\u6559\u7a0b – \u9a8c\u8bc1\u5668\u6807\u7b7e\uff0c\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u5668\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51711\u90e8\u5206\uff09\u3002<\/p>\n

JSF\u9a8c\u8bc1\u6a21\u578b\u5b9a\u4e49\u4e86\u4e00\u7ec4\u7528\u4e8e\u9a8c\u8bc1UI\u7ec4\u4ef6\u7684\u6807\u51c6\u7c7b\u3002JSF\u5e93\u5b9a\u4e49\u4e86\u4e00\u7ec4\u6838\u5fc3\u6807\u7b7e\uff0c\u8fd9\u4e9b\u6807\u7b7e\u5bf9\u5e94\u4e8ejavax.faces.validator.Validator<\/code>\u7684\u5b9e\u73b0\u7c7b\u3002\u9664\u4e86\u6807\u51c6\u7684\u9519\u8bef\u6d88\u606f\u5916\uff0c\u9a8c\u8bc1\u6a21\u578b\u8fd8\u5141\u8bb8\u6211\u4eec\u5b9a\u4e49\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u3002JSF\u4e2d\u7684\u9a8c\u8bc1\u53ef\u4ee5\u5206\u4e3a\u547d\u4ee4\u5f0f\u548c\u58f0\u660e\u5f0f\u4e24\u79cd\u7c7b\u578b\u3002<\/p>\n

JSF \u9a8c\u8bc1 – \u58f0\u660e\u5f0f\u9a8c\u8bc1\u5668<\/h3>\n

\u4f7f\u7528JSF\u6807\u51c6\u9a8c\u8bc1\u5668\u6216Bean\u9a8c\u8bc1\u5668\u89e6\u53d1\u7684\u9a8c\u8bc1\u5c5e\u4e8e\u58f0\u660e\u5f0f\u7c7b\u578b\u3002JSF\u6807\u51c6\u9a8c\u8bc1\u5668\u7684\u793a\u4f8b\u5305\u62ec\u957f\u5ea6\u9a8c\u8bc1\u5668\u3001\u5fc5\u586b\u9a8c\u8bc1\u5668\u7b49\u3002\u4e0b\u9762\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u6807\u51c6\u9a8c\u8bc1\u5668\u7684\u4f8b\u5b50\u3002\u521b\u5efa\u4e00\u4e2a\u540d\u4e3amobile.xhtml<\/code>\u7684\u6587\u4ef6\u3002<\/p>\n

<?xml version='1.0' encoding='UTF-8' ?>\r\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD XHTML 1.0 Transitional\/\/EN\" \"https:\/\/www.w3.org\/TR\/xhtml1\/DTD\/xhtml1-transitional.dtd\">\r\n<html xmlns=\"https:\/\/www.w3.org\/1999\/xhtml\"\r\n\txmlns:h=\"https:\/\/java.sun.com\/jsf\/html\">\r\n<h:head>\r\n<\/h:head>\r\n<h:body>\r\n\t<h3>\u6dfb\u52a0\u624b\u673a\u8be6\u60c5<\/h3>\r\n\t<h:form>\r\n\t\t<h:panelGrid columns=\"3\">\r\n\t\t\t<h:outputLabel for=\"mname\">\u624b\u673a\u540d\u79f0:<\/h:outputLabel>\r\n\t\t\t<h:inputText id=\"mname\" required=\"true\"\r\n\t\t\t\trequiredMessage=\"\u624b\u673a\u540d\u79f0\u4e3a\u5fc5\u586b\u9879\"><\/h:inputText>\r\n\t\t\t<br>\r\n\t\t\t<br>\r\n\r\n\t\t\t<h:outputLabel for=\"color\">\u989c\u8272:<\/h:outputLabel>\r\n\t\t\t<h:inputText id=\"color\" required=\"true\"><\/h:inputText>\r\n\t\t\t<br>\r\n\t\t\t<br>\r\n\r\n\t\t\t<h:outputLabel for=\"model\">\u578b\u53f7:<\/h:outputLabel>\r\n\t\t\t<h:inputText id=\"model\"><\/h:inputText>\r\n\t\t\t<br>\r\n\t\t\t<br>\r\n\r\n\t\t\t<h:commandButton value=\"\u63d0\u4ea4\"><\/h:commandButton>\r\n\t\t<\/h:panelGrid>\r\n\t<\/h:form>\r\n<\/h:body>\r\n<\/html><\/code><\/pre>\n
\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06required<\/code>\u5c5e\u6027\u8bbe\u7f6e\u4e3atrue<\/code>\uff0c\u8fd9\u4f7f\u5f97\u8be5\u5b57\u6bb5\u6210\u4e3a\u5fc5\u586b\u9879\u3002\u5bf9\u4e8e\u201c\u989c\u8272\u201d\u5b57\u6bb5\uff0c\u5c06\u89e6\u53d1\u9ed8\u8ba4\u7684\u201c\u503c\u662f\u5fc5\u9700\u7684\u201d\u6d88\u606f\uff1b\u800c\u5bf9\u4e8e\u201c\u624b\u673a\u540d\u79f0\u201d\u5b57\u6bb5\uff0c\u7531\u4e8e\u5728requiredMessage<\/code>\u5c5e\u6027\u4e2d\u6307\u5b9a\u4e86\u6d88\u606f\uff0c\u5c06\u89e6\u53d1\u7528\u6237\u5b9a\u4e49\u7684\u6d88\u606f\u3002\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\uff0c\u70b9\u51fb\u63d0\u4ea4\u6309\u94ae\uff0c\u60a8\u5c06\u770b\u5230\u4ee5\u4e0b\u8f93\u51fa\u3002<\/p>\n
JSF \u547d\u4ee4\u5f0f\u9a8c\u8bc1<\/h3>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6807\u51c6\u9a8c\u8bc1\u6d88\u606f\u53ef\u80fd\u4e0d\u8db3\u4ee5\u6ee1\u8db3\u9700\u6c42\uff0c\u6709\u65f6\u53ef\u80fd\u9700\u8981\u66f4\u590d\u6742\u7684\u9a8c\u8bc1\u3002\u901a\u8fc7\u547d\u4ee4\u5f0f\u9a8c\u8bc1\uff0c\u7528\u6237\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n
    \n
  1. \u4eceBean\u65b9\u6cd5\u89e6\u53d1\u9a8c\u8bc1<\/li>\n
  2. \u5728\u8fd0\u884c\u65f6\u5728\u7c7b\u4e2d\u4f7f\u7528\u6ce8\u89e3@FacesValidator<\/code><\/li>\n<\/ol>\n
    \u4eceBean\u65b9\u6cd5\u4e2d\u89e6\u53d1\u9a8c\u8bc1\uff1a\u5728\u8fd9\u79cd\u7c7b\u578b\u7684\u9a8c\u8bc1\u4e2d\uff0c\u6211\u4eec\u5728Bean\u4e2d\u7f16\u5199\u4e00\u4e2a\u65b9\u6cd5\u6765\u9a8c\u8bc1UI\u7ec4\u4ef6\uff0c\u5e76\u901a\u8fc7\u8f93\u5165\u6587\u672c\u6807\u7b7e\u7684validator<\/code>\u5c5e\u6027\u5728JSF\u9875\u9762\u4e2d\u8c03\u7528\u6b64\u65b9\u6cd5\u3002\u73b0\u5728\u8ba9\u6211\u4eec\u770b\u4e00\u4e2a\u4eceBean\u89e6\u53d1\u9a8c\u8bc1\u7684\u4f8b\u5b50\u3002\u521b\u5efa\u4e00\u4e2a\u540d\u4e3amob.xhtml<\/code>\u7684\u6587\u4ef6\u3002<\/p>\n
    <?xml version='1.0' encoding='UTF-8' ?>\r\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD XHTML 1.0 Transitional\/\/EN\" \"https:\/\/www.w3.org\/TR\/xhtml1\/DTD\/xhtml1-transitional.dtd\">\r\n<html xmlns=\"https:\/\/www.w3.org\/1999\/xhtml\"\r\n\txmlns:h=\"https:\/\/java.sun.com\/jsf\/html\">\r\n<h:head>\r\n<\/h:head>\r\n<h:body>\r\n\t<h3>\u6dfb\u52a0\u624b\u673a\u8be6\u60c5<\/h3>\r\n\t<h:form>\r\n\t\t<h:outputLabel for=\"mno\">\u578b\u53f7:<\/h:outputLabel>\r\n\t\t<h:inputText id=\"mno\" value=\"#{mobile.mno}\" required=\"true\" size=\"4\"\r\n\t\t\tdisabled=\"#{mobile.mno}\" validator=\"#{mobile.validateModelNo}\">\r\n\t\t<\/h:inputText>\r\n\t\t<h:commandButton value=\"\u63d0\u4ea4\"><\/h:commandButton>\r\n\t<\/h:form>\r\n<\/h:body>\r\n<\/html><\/code><\/pre>\n
    \u5728\u8fd9\u4e2a\u9875\u9762\u4e2d\uff0c\u6211\u4eec\u5728validator<\/code>\u6807\u7b7e\u5c5e\u6027\u4e2d\u8c03\u7528\u4e86Java Bean\u7684validateModelNo<\/code>\u65b9\u6cd5\u3002\u521b\u5efaMobile.java<\/code>\u6587\u4ef6\u5982\u4e0b\uff1a<\/p>\n
    package com.Olivia.jsf.bean;\r\n\r\nimport java.io.Serializable;\r\nimport javax.faces.application.FacesMessage;\r\nimport javax.faces.bean.ManagedBean;\r\nimport javax.faces.bean.SessionScoped;\r\nimport javax.faces.component.UIComponent;\r\nimport javax.faces.component.UIInput;\r\nimport javax.faces.context.FacesContext;\r\n\r\n@ManagedBean\r\n@SessionScoped\r\npublic class Mobile implements Serializable {\r\n\r\n\tprivate static final long serialVersionUID = -7250065889869767422L;\r\n\r\n\t\/\/ @NotNull(message=\"\u8bf7\u8f93\u5165\u578b\u53f7\")\r\n\tprivate String mno;\r\n\r\n\tpublic String getMno() {\r\n\t\treturn mno;\r\n\t}\r\n\r\n\tpublic void setMno(String mno) {\r\n\t\tthis.mno = mno;\r\n\t}\r\n\r\n\tpublic void validateModelNo(FacesContext context, UIComponent comp,\r\n\t\t\tObject value) {\r\n\r\n\t\tSystem.out.println(\"\u8fdb\u5165\u9a8c\u8bc1\u65b9\u6cd5\");\r\n\r\n\t\tString mno = (String) value;\r\n\r\n\t\tif (mno.length() < 4) {\r\n\t\t\t((UIInput) comp).setValid(false);\r\n\r\n\t\t\tFacesMessage message = new FacesMessage(\r\n\t\t\t\t\t\"\u578b\u53f7\u7684\u6700\u5c0f\u957f\u5ea6\u4e3a4\");\r\n\t\t\tcontext.addMessage(comp.getClientId(context), message);\r\n\r\n\t\t}\r\n\r\n\t}\r\n\r\n}<\/code><\/pre>\n
    \u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u68c0\u67e5\u578b\u53f7\u7684\u957f\u5ea6\uff0c\u5982\u679c\u957f\u5ea6\u5c0f\u4e8e4\uff0c\u6211\u4eec\u5c06\u6307\u5b9a\u6d88\u606f\u4e3a\u201c\u578b\u53f7\u7684\u6700\u5c0f\u957f\u5ea6\u4e3a4\u201d\u3002\u73b0\u5728\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\uff0c\u5c06\u4ea7\u751f\u4ee5\u4e0b\u8f93\u51fa\u3002<\/p>\n
    \u5728Bean\u4e2d\u4f7f\u7528@FacesValidator<\/code> – \u81ea\u5b9a\u4e49JSF\u9a8c\u8bc1\u5668<\/h3>\n
    \u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528@FacesValidator<\/code>\u6ce8\u89e3\uff0c\u4e3a\u9a8c\u8bc1\u5668\u6307\u5b9a\u540d\u79f0\uff0c\u5e76\u901a\u8fc7\u8986\u76d6validate<\/code>\u65b9\u6cd5\u6765\u5b9e\u73b0\u9a8c\u8bc1\u5668\u3002\u521b\u5efa\u4e00\u4e2a\u540d\u4e3amobvalidator.xhtml<\/code>\u7684\u6587\u4ef6\u3002<\/p>\n
    <?xml version='1.0' encoding='UTF-8' ?>\r\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD XHTML 1.0 Transitional\/\/EN\" \"https:\/\/www.w3.org\/TR\/xhtml1\/DTD\/xhtml1-transitional.dtd\">\r\n<html xmlns=\"https:\/\/www.w3.org\/1999\/xhtml\"\r\n\txmlns:h=\"https:\/\/xmlns.jcp.org\/jsf\/html\"\r\n\txmlns:f=\"https:\/\/java.sun.com\/jsf\/core\">\r\n<h:head>\r\n<\/h:head>\r\n<h:body>\r\n\t<h:form>\r\n\t\t<h3>\u4f7f\u7528Faces\u9a8c\u8bc1\u5668\u8fdb\u884c\u9a8c\u8bc1<\/h3>\r\n\t\t<h:outputLabel for=\"mno\" value=\"\u578b\u53f7: \" \/>\r\n\t\t<h:inputText id=\"mno\" value=\"#{mobileValidator.mno}\">\r\n\t\t<f:validator validatorId=\"mobileValidator\" \/>\r\n\t\t<\/h:inputText>\r\n\t\t<h:message for=\"mno\" style=\"color:blue\" \/>\r\n\t\t<p><\/p>\r\n\t\t<h:commandButton value=\"\u63d0\u4ea4\"><\/h:commandButton>\r\n\t<\/h:form>\r\n<\/h:body>\r\n<\/html><\/code><\/pre>\n
    \u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5728\u6807\u7b7e\u7684validatorId<\/code>\u5c5e\u6027\u4e2d\u8c03\u7528\u540d\u4e3a\u201cmobileValidator\u201d\u7684\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u5668\u3002\u521b\u5efa\u540d\u4e3aMobileValidator.java<\/code>\u7684\u6587\u4ef6\u3002<\/p>\n
    package com.Olivia.jsf.bean;\r\n\r\nimport javax.faces.application.FacesMessage;\r\nimport javax.faces.bean.ManagedBean;\r\nimport javax.faces.bean.SessionScoped;\r\nimport javax.faces.component.UIComponent;\r\nimport javax.faces.context.FacesContext;\r\nimport javax.faces.validator.FacesValidator;\r\nimport javax.faces.validator.Validator;\r\nimport javax.faces.validator.ValidatorException;\r\n\r\n@ManagedBean\r\n@SessionScoped\r\n@FacesValidator(\"mobileValidator\")\r\npublic class MobileValidator implements Validator {\r\n\r\n\tprivate String mno;\r\n\r\n\tpublic String getMno() {\r\n\t\treturn mno;\r\n\t}\r\n\r\n\tpublic void setMno(String mno) {\r\n\t\tthis.mno = mno;\r\n\t}\r\n\r\n\tint maximumlength = 6;\r\n\r\n\tpublic MobileValidator() {\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void validate(FacesContext fc, UIComponent uic, Object obj)\r\n\t\t\tthrows ValidatorException {\r\n\r\n\t\tString model = (String) obj;\r\n\r\n\t\tif (model.length() > 6) {\r\n\t\t\tFacesMessage msg = new FacesMessage(\r\n\t\t\t\t\t\"\u6700\u5927\u957f\u5ea6\u4e3a6\uff0c\u8bf7\u5728\u8303\u56f4\u5185\u8f93\u5165\u503c\");\r\n\t\t\tmsg.setSeverity(FacesMessage.SEVERITY_ERROR);\r\n\r\n\t\t\tthrow new ValidatorException(msg);\r\n\t\t}\r\n\r\n\t}\r\n\r\n}<\/code><\/pre>\n
    \u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u8986\u76d6\u4e86\u6807\u51c6\u7684validate<\/code>\u65b9\u6cd5\uff0c\u5e76\u5b9e\u73b0\u4e86\u81ea\u5df1\u7684\u903b\u8f91\u6765\u9a8c\u8bc1\u8f93\u5165\u5b57\u6bb5\u3002\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\u5e76\u67e5\u770b\u4ee5\u4e0b\u8f93\u51fa\u3002\u6700\u540e\uff0c\u4e0b\u9762\u7684\u56fe\u7247\u663e\u793a\u4e86\u9879\u76ee\u7ed3\u6784\u3002\u60a8\u53ef\u4ee5\u4ece\u4e0b\u9762\u7684\u94fe\u63a5\u4e0b\u8f7d\u8be5\u9879\u76ee\u5e76\u8fdb\u884c\u8bd5\u9a8c\u4ee5\u83b7\u53d6\u66f4\u591a\u4e86\u89e3\u3002<\/p>\n
    \u4e0b\u8f7dJSF\u9a8c\u8bc1\u793a\u4f8b\u9879\u76ee<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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