如何自定义JSTL标签 1.创建一个类,从SimpleTagSupport继承 A) 通过继承可以获得当前JSP页面上的对象,如JspContext I) 实际上可以强转为PageContext II) 通过PageContext可以拿到HttpServletRequest等对象 B) 通过JspContext可以获取输出流,向页面上输出内容(文字/HTML标签) C) 重写doTage()方法实现标签的内部逻辑 2.在tld(标签库描述)文件中添加<tag>标签 A) 如果tld还没有,则从
原来jstl标签版本不一样,标签支持不一样. jstl1.0标签库不支持表达式,如: <c:if test="${query01 == null}"> <jsp:forward page="/index.jsp"/> </c:if> 在1.0下面,会报错: According to TLD or attribute directive in tag file, attribute value 解决办法是使用备用库 <%@
https://www.cnblogs.com/ajax-li/p/7856393.html 报错内容: Multiple annotations found at this line: - cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'dubbo:application'.- schema_reference.4: Failed to r
freemarker自定义标签 1.错误描述 freemarker.core.ParseException: Encountered "\"\u4f60\u597d\uff01\"" at line 18, column 25 in myself.ftl. Was expecting one of: ";" ... <ID> ... ">" ... <EMPTY_DIRECTIVE_END> ..
freemarker自定义标签 1.错误描述 六月 05, 2014 11:40:49 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error 严重: Template processing error: "Expression name is undefined on line 18, column 20 in myself.ftl." Expression name is undefined on line 18, column
freemarker自定义标签 1.错误描述 freemarker.core.ParseException: Unexpected end of file reached. at freemarker.core.FMParser.generateParseException(FMParser.java:4702) at freemarker.core.FMParser.jj_consume_token(FMParser.java:4573) at freemarker.core.FMParser
1.错误描述 六月 09, 2014 11:11:09 下午 freemarker.log.JDK14LoggerFactory$JDK14Logger error 严重: Template processing error: "Expression a is undefined on line 27, column 23 in tag.ftl." Expression a is undefined on line 27, column 23 in tag.ftl. The probl
freemarker自己定义标签 1.错误描写叙述 freemarker.core.ParseException: Unexpected end of file reached. at freemarker.core.FMParser.generateParseException(FMParser.java:4702) at freemarker.core.FMParser.jj_consume_token(FMParser.java:4573) at freemarker.core.FMPar