turtle

---- SampleLayoutCodeActivity.java package com.example.administrator.myapplication_view; import android.app.Activity; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.Button; import android.widget.LinearLayout; public class SampleLayoutCodeActivity extends Activity {     @Override    protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         LinearLayout mainLayout = new LinearLayout(this);         mainLayout.setOrientation(LinearLayout.VERTICAL);  // new 연산자로 LinearLayout을 만들고 방향 설정         Button button01 = new Button(this); // Button 생성        button01.setText("Button 01");         LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT); // n...

Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference 이전페이지로 돌아가 구현중 에러 발생 layout 및 activity를 기존거 복사해와서 작업하다보니 위에 체크한 부분의 이름을 새로운 layout으로 바꾸는걸 깜박했다.

Error:Error: 'N' is not a valid file-based resource name character: File-based resource names must contain only lowercase a-z, 0-9, or underscore ayout xml 파일명에 대문자 N을 사용했음 layout xml 파일명만 소문자, 숫자, _만 사용가능 등

http://seohyun99.tistory.com/2

error :  SELECT 10/0 FROM dual SELECT 10/ NULLIF(0,0) FROM dual

숫자 : <fmt:formatNumber value="12345.678" type="number"/><br/> 통화 : <fmt:formatNumber value="12345.678" type="currency" currencySymbol="$"/><br/> 백분율 : <fmt:formatNumber value="12345.678" type="percent"/><br/> 소수이하 : <fmt:formatNumber value="12345.678" pattern="#,##0.0"/><br/> JSTL tag ex)  : https://ahnsk39.blogspot.com/2017/08/jstljsp-standard-tag-library.html

ERROR 1130  Host 'xxx' is not allowed to connect to this MySQL server ex) userID : testuser userPW : testuser DB : xe ip : 192.168.0.2 Mysql > GRANT ALL PRIVILEGES ON *.* TO testuser@192.168.0.2 IDENTIFIED BY 'testuser' WITH GRANT OPTION; FLUSH PRIVILEGES; 접속 권한이 없어서 발생한 문제

pom.xml ------------------------------------ <plugin>     <groupId>org.eclipse.jetty</groupId>     <artifactId>jetty-maven-plugin</artifactId>     <version>9.0.0.M3</version>     <configuration>      <scanIntervalSeconds>1</scanIntervalSeconds>      <webAppConfig>       <contextPath>/test</contextPath>      </webAppConfig>     </configuration>  </plugin> ----------------------------------------- <hotdeploy> tomcat :  https://ahnsk39.blogspot.com/2017/09/springloaded-spring-hot-deploy-tomcat.html jeus :  https://ahnsk39.blogspot.com/2017/09/hot-deploy-jeus.html jBoss :  https://ahnsk39.blogspot.com/2017/09/jboss-hot-deploy.html

\configuration\standalone.xml      <configuration>                 <jsp-configuration development="true" check-interval="1" modification-test-interval="1" recompile-on-fail="true"/>      </configuration> ----------------------------------------- <hotdeploy> tomcat :  https://ahnsk39.blogspot.com/2017/09/springloaded-spring-hot-deploy-tomcat.html jeus :  https://ahnsk39.blogspot.com/2017/09/hot-deploy-jeus.html maven jetty :  https://ahnsk39.blogspot.com/2017/09/maven-jetty-hotdeploy.html

tomcat :  https://ahnsk39.blogspot.com/2017/09/springloaded-spring-hot-deploy-tomcat.html jeus :  https://ahnsk39.blogspot.com/2017/09/hot-deploy-jeus.html jBoss :  https://ahnsk39.blogspot.com/2017/09/jboss-hot-deploy.html maven jetty :  https://ahnsk39.blogspot.com/2017/09/maven-jetty-hotdeploy.html

springloaded download : https://drive.google.com/open?id=0B7voYRgqBNAZSzJGckRpYjVfeUU

jeus 설정 파일 jeus-web-dd.xml 편집  - <auto-reload>설정에서 <enable-reload>가 true이면 핫디폴로이  - <check-on-demand>가 true 이면 클래스들의 마직막 수정시간을 체크하여 변경유무 확인 ----------------------------------------- <hotdeploy> tomcat :  https://ahnsk39.blogspot.com/2017/09/springloaded-spring-hot-deploy-tomcat.html jBoss :  https://ahnsk39.blogspot.com/2017/09/jboss-hot-deploy.html maven jetty :  https://ahnsk39.blogspot.com/2017/09/maven-jetty-hotdeploy.html

springloaded-1.2.1.RELEASE.jar :  https://ahnsk39.blogspot.com/2017/09/springloadedjar-download.html GitHub : https://github.com/spring-projects/spring-loaded 1.  springloaded 다운로드 후 원하는 위치에 파일 이동 2. 해당 프로젝트의 vm arguments 설정화면 3. arguments 탭에서 추가  -javaagent:D:\kesi\kesiWorkspace\common\vender\springloaded-1.2.1.RELEASE.jar  -noverify 4. tomcat 설정 Publishing 탭 : Automatically publish when resources change Modules 탭 :  Auto Reload 체크 해제 ----------------------------------------- <hotdeploy> jeus :  https://ahnsk39.blogspot.com/2017/09/hot-deploy-jeus.html jBoss :  https://ahnsk39.blogspot.com/2017/09/jboss-hot-deploy.html maven jetty :  https://ahnsk39.blogspot.com/2017/09/maven-jetty-hotdeploy.html

java : java -version jeus : jeusadmin -version webtob : wscfl -version