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At least one JAR was scanned for TLDs yet contained no TLDs

Posted on 2020-10-26Updated on 2020-10-27by 관리자카테고리:Eclipse 에러 해결


At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
log4j:ERROR setFile(null,true) call failed.

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At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

log4j:ERROR setFile(null,true) call failed.

참조: https://javacan.tistory.com/entry/decrease-tomcat-startup-time-by-skip-jar-scan 추가


geronimo-spec-jaxrpc*.jar,wsdl4j*.jar,\
ant.jar,ant-junit*.jar,aspectj*.jar,jmx.jar,h2*.jar,hibernate*.jar,httpclient*.jar,\
jmx-tools.jar,jta*.jar,log4j*.jar,mail*.jar,slf4j*.jar,\
xercesImpl.jar,xmlParserAPIs.jar,xml-apis.jar,\
junit.jar,junit-*.jar,ant-launcher.jar,\
cobertura-*.jar,asm-*.jar,dom4j-*.jar,icu4j-*.jar,jaxen-*.jar,jdom-*.jar,\
jetty-*.jar,oro-*.jar,servlet-api-*.jar,tagsoup-*.jar,xmlParserAPIs-*.jar,\
xom-*.jar,\
rt.jar,\
spring-*.RELEASE.jar

# Default list of JAR files that should be scanned that overrides the default
# jarsToSkip list above. This is typically used to include a specific JAR that
# has been excluded by a broad file name pattern in the jarsToSkip list.
# The list of JARs to scan may be over-ridden at a Context level for individual
# scan types by configuring a JarScanner with a nested JarScanFilter.
tomcat.util.scan.StandardJarScanFilter.jarsToScan=\
log4j-core*.jar,log4j-taglib*.jar,log4javascript*.jar,slf4j-taglib*.jar,\
spring-webmvc-*.jar

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geronimo-spec-jaxrpc*.jar,wsdl4j*.jar,\

ant.jar,ant-junit*.jar,aspectj*.jar,jmx.jar,h2*.jar,hibernate*.jar,httpclient*.jar,\

jmx-tools.jar,jta*.jar,log4j*.jar,mail*.jar,slf4j*.jar,\

xercesImpl.jar,xmlParserAPIs.jar,xml-apis.jar,\

junit.jar,junit-*.jar,ant-launcher.jar,\

cobertura-*.jar,asm-*.jar,dom4j-*.jar,icu4j-*.jar,jaxen-*.jar,jdom-*.jar,\

jetty-*.jar,oro-*.jar,servlet-api-*.jar,tagsoup-*.jar,xmlParserAPIs-*.jar,\

xom-*.jar,\

rt.jar,\

spring-*.RELEASE.jar

# Default list of JAR files that should be scanned that overrides the default

# jarsToSkip list above. This is typically used to include a specific JAR that

# has been excluded by a broad file name pattern in the jarsToSkip list.

# The list of JARs to scan may be over-ridden at a Context level for individual

# scan types by configuring a JarScanner with a nested JarScanFilter.

tomcat.util.scan.StandardJarScanFilter.jarsToScan=\

log4j-core*.jar,log4j-taglib*.jar,log4javascript*.jar,slf4j-taglib*.jar,\

spring-webmvc-*.jar

Example01.log (지정된 경로를 찾을 수 없습니다)

Posted on 2020-10-23by 관리자카테고리:Eclipse 에러 해결


10월 23, 2020 5:22:45 오후 org.apache.jasper.servlet.TldScanner scanJars
정보: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
log4j:ERROR setFile(null,true) call failed.
java.io.FileNotFoundException: E:\Project\logs\Example01.log (지정된 경로를 찾을 수 없습니다)

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10월 23, 2020 5:22:45 오후 org.apache.jasper.servlet.TldScanner scanJars

정보: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

log4j:ERROR setFile(null,true) call failed.

java.io.FileNotFoundException: E:\Project\logs\Example01.log (지정된 경로를 찾을 수 없습니다)

Example01 Property maxActive is not used in DBCP2,

Posted on 2020-10-23by 관리자카테고리:Eclipse 에러 해결


경고: Name = Example01 Property maxActive is not used in DBCP2, use maxTotal instead.
 maxTotal default value is 8.
 You have set value of "50" for "maxActive" property, which is being ignored.

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경고: Name = Example01 Property maxActive is not used in DBCP2, use maxTotal instead.

maxTotal default value is 8.

You have set value of "50" for "maxActive" property, which is being ignored.

Tomcat JDBC Connection Pool and Apache DBCP are two different connection pool implementations. In your stage environment you probably have Apache DBCP2 in classpath and Tomcat tries to use it instead of Tomcat JDBC Connection Pool. maxActive 를 maxTotal maxWait -> maxWaitMillis 로 수정

[SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property ‘source’

Posted on 2020-10-23Updated on 2020-10-23by 관리자카테고리:Eclipse 에러 해결


경고: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 
'org.eclipse.jst.jee.server:Exsample01' did not find a matching property.

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경고: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to

'org.eclipse.jst.jee.server:Exsample01' did not find a matching property.

1. 이클립스 톰캣 설정 메뉴를 클릭 하여 설정 메뉴로 들어 갑니다. 2. Server Options에서 아래 메뉴를 체크 합니다. 3. 서버를 다시 시작 합니다.

[java] Throwable – printStackTrace

Posted on 2020-10-23Updated on 2020-10-29by 관리자카테고리:jsp 샘픔


class Program {
    public static void foo() {
      try {
        int num1 = 5/0;
      }
      catch (Throwable e) {
          e.printStackTrace();
      }
    }

    public static void main( String args[] ) {
      foo();
    }
}

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class Program {

public static void foo() {

try {

int num1 = 5/0;

}

catch (Throwable e) {

e.printStackTrace();

}

public static void main( String args[] ) {

foo();

}


java.lang.ArithmeticException: / by zero
	at Program.foo(main.java:4)
	at Program.main(main.java:12)

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java.lang.ArithmeticException: / by zero

at Program.foo(main.java:4)

at Program.main(main.java:12)

cellpadding cellpadding is obsolete

Posted on 2020-10-21by 관리자카테고리:Eclipse 에러 해결

Multiple annotations found at this line: – Attribute (cellpadding) is obsolete. Its use is discouraged in HTML5 documents. – Attribute (cellpadding) is obsolete. Its use is discouraged in HTML5 documents.


<table cellpadding='0' cellspacing='0'> (X)

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<table cellpadding='0' cellspacing='0'> (X)

HTML5 CSS 로 수정


<style type="text/css">
   //CSS Replacement for cellpadding='0':
   table
   { 
       border-spacing:0;
       border-collapse:collapse;
   }

   // CSS Replacement for cellspacing='0':
   table td, table th
   {
       padding: 0;
   }
</style>

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//CSS Replacement for cellpadding='0':

table

{

border-spacing:0;

border-collapse:collapse;

}

// CSS Replacement for cellspacing='0':

table td, table th

{

padding: 0;

}

</style>


<style type="text/css">
   /* CSS Replacement for cellpadding='0': */ 
   table.MyTestClass
   {
       background-color: #FFFF00;
       border-spacing: 0;
       border-collapse: collapse;
   }

   /* CSS Replacement for cellspacing='0': */
   table.MyTestClass td
   {
       padding: 0;
       vertical-align: top;
   }

   /* CSS Replacement for cellspacing='0': */ 
   table.MyTestClass th
   {
       padding: 0;
       vertical-align: top;
   }
</style>

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/* CSS Replacement for cellpadding='0': */

table.MyTestClass

{

background-color: #FFFF00;

border-spacing: 0;

border-collapse: collapse;

}

/* CSS Replacement for cellspacing='0': */

table.MyTestClass td

{

padding: 0;

vertical-align: top;

}

/* CSS Replacement for cellspacing='0': */

table.MyTestClass th

{

padding: 0;

vertical-align: top;

}

</style>

참조 : https://wiki.devknight.com/wiki/3/cellpadding0-and-cellspacing0-replacement-for-html5

Undefined attribute value (absmiddle).

Posted on 2020-10-21by 관리자카테고리:Eclipse 에러 해결


<img src="" align="absmiddle"> (X)

<img src="" style="vertical-align:middle">  (O)

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<img src="" align="absmiddle"> (X)

<img src="" style="vertical-align:middle"> (O)

Attribute (language) is obsolete. Its use is discouraged in HTML5 documents. script

Posted on 2020-10-21by 관리자카테고리:Eclipse 에러 해결


<script language="javascript"> (X)

<script type="text/javascript"> (O)
<script>                        (O)

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<script> (O)

No grammar constraints (DTD or XML Schema) referenced in the document.

Posted on 2020-10-21Updated on 2020-10-21by 관리자카테고리:Eclipse 에러 해결

다음과 같은 경고 메시지가 뜨면 아래와 같이 DOCTYPE을 입력합니다. No grammar constraints (DTD or XML Schema) referenced in the document.


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration>

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<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE configuration>

[jsp] JSTL 사용 하기

Posted on 2020-10-20Updated on 2020-10-29by 관리자카테고리:jsp 샘픔

jar 다운로드: jstl-1.2.jar 세팅 : Sample test


<%@ page language="java" contentType="text/html; charset=EUC-KR"
    pageEncoding="EUC-KR"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page import="java.util.ArrayList"%>
<%@ page import="java.util.*"%>
<%
    Map<String,ArrayList<String>> mapOfList = new LinkedHashMap<String,ArrayList<String>>(); 
  
 ArrayList<String> list;
 
 for(int i=0;i<13;i++){
  list = new ArrayList<String>();
  
  for(int j=0;j<13;j++){
  list.add("value"+j);
  }
  
  mapOfList.put("key"+i,list);
 }
    
    request.setAttribute("mapOfList", mapOfList);
%>
<html>
<body>
<table>
    <c:forEach items="${mapOfList}" var="list">
    <th>
    <c:out value="${list.key}"></c:out><br></th>
    <tr>
        <c:forEach items="${list.value}" var="listItem">
       <td> ${listItem} <br/> </td>
    </c:forEach>
    </tr>
    </c:forEach>
    </table>
</body>
</html>

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<%@ page language="java" contentType="text/html; charset=EUC-KR"

pageEncoding="EUC-KR"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<%@ page import="java.util.ArrayList"%>

<%@ page import="java.util.*"%>

<%

Map<String,ArrayList<String>> mapOfList = new LinkedHashMap<String,ArrayList<String>>();

ArrayList<String> list;

for(int i=0;i<13;i++){

list = new ArrayList<String>();

for(int j=0;j<13;j++){

list.add("value"+j);

}

mapOfList.put("key"+i,list);

}

request.setAttribute("mapOfList", mapOfList);

%>

<html>

<body>

<table>

<c:forEach items="${mapOfList}" var="list">

<th>

<c:out value="${list.key}"></c:out><br></th>

<tr>

<c:forEach items="${list.value}" var="listItem">

<td> ${listItem} <br/> </td>

</c:forEach>

</tr>

</c:forEach>

</table>

</body>

</html>