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# ---> Java HELP.md
# Compiled class file target/
*.class !.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
# Log file ### STS ###
*.log .apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
# BlueJ files ### IntelliJ IDEA ###
*.ctxt .idea
*.iws
*.iml
*.ipr
# Mobile Tools for Java (J2ME) ### NetBeans ###
.mtj.tmp/ /nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
# Package Files # ### VS Code ###
*.jar .vscode/
*.war
*.nar
*.ear
*.zip
*.tar.gz
*.rar
# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
hs_err_pid*
replay_pid*
### Project Related ###

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distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.5/apache-maven-3.9.5-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar

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README.md
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# learn-springboot-restapi-sqlite # Project for learning Spring Boot, RESTful API, and SQLite
Self-learing project for Springboot for RESTful API with SQLite database This is a self-learing project for Spring Boot for RESTful API with SQLite database
## Environments
The following tools/libraries are used in this project:
1. Microsoft VS Code
1. OpenJDK 17
1. VSCode extensions:
1. [Debugger for Java](https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-java-debug)
1. [Extension Pack for Java](https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-java-pack)
1. [Java Code Generators](https://marketplace.visualstudio.com/items?itemName=sohibe.java-generate-setters-getters)
1. [Language Support for Java(TM) by Red Hat](https://marketplace.visualstudio.com/items?itemName=redhat.java)
1. [Maven for Java](https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-maven)
1. [Project Manager for Java](https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-java-dependency)
1. [Spring Boot Dashboard](https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-spring-boot-dashboard)
1. [Spring Boot Extension Pack](https://marketplace.visualstudio.com/items?itemName=vmware.vscode-boot-dev-pack)
1. [Spring Boot Tools](https://marketplace.visualstudio.com/items?itemName=vmware.vscode-spring-boot)
1. [Spring Initializr Java Support](https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-spring-initializr)
1. [SQLite](https://marketplace.visualstudio.com/items?itemName=alexcvzz.vscode-sqlite) (Optional)
1. [Test Runner for Java](https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-java-test) (Optional)
1. Linux or Windows WSL2 with Bash or Zsh Shell
1. Linux Package
1. `sqlite3`
# Create the project from scratch
The following steps will create this project from scratch. Assuming the environment has been setup properly.
## Create Spring Boot Project in VSCode
1. Start VSCode (e.g. from CLI: `code .`) and open the project folder
1. Press `CTRL-SHIFT-P` and type `Spring Initializr`
1. Select `Spring Initializr: Create a Maven Project...`
1. Specify Spring Boot Version: `3.2.0`
1. Specify project language: `Java`
1. Input Group Id: `com.example` (or any other you like)
1. Input Artifact Id: `demo` (or any other you like, it will be the project folder too.)
1. Specify packaging type: `Jar`
1. Specify Java version: `17`
1. Choose dependencies:
1. Spring Web
1. Spring Boot DevTools
1. MyBatis Framework
1. Select the directory for file generation (__NOTE__: Project folder will be created under this folder)
1. Now the project layout (needed files and folders) should be created.
1. A dialogue will be prompted for opening the new project in VSCode. You can also Restart the VSCode under the generated project folder directly
## Add Maven dependencies
1. In VSCode Explorer, expand `Maven` panel and locate the `Dependencies`
1. Click the `+` button next to the `Dependencies` dropdown item
1. Type `sqlite-jdbc`, press ENTER, and find `sqlite-jdbc org.xerial`, Select it
1. Type `gson`, press ENTER, and find `gson com.google.code.gson`, Select it
1. New dependence will be downloaded and added
## Update the Maven/Project information (Optional)
1. Open `poe.xml`
1. Change the `<groupId>`,`<artifactId>`,`<name>`,`<description>` for your desire
1. Use VSCode to renew (refactor) the folder and file accordingly
```
- src
|-main
|- java/com/example/demo --> java/{other group}/{other id}
|- DemoApplication.java -<RENAME>-> MainApplication.java
(Note: VSCode will modify the java file accordingly)
## Create/Update the folders or files
- data <NEW>
- src
|-main
|-java/com/example/demo (or other folder)
|- model <NEW>
|- ApiController.java <NEW>
|-resources
|- mapper <NEW>
|- mainapp.xml <NEW>
|- mybatis <NEW>
|- mybatis-config.xml <NEW>
## Update/Create the files
Refer to the file in this project, update the following files accordingly:
- [src/main/resources/mybatis/mybatis-config.xml](src/main/resources/mybatis/mybatis-config.xml)
- [src/main/resources/application.properties](src/main/resources/application.properties)
- [src/main/resources/mapper/mainapp.xml](src/main/resources/mapper/mainapp.xml)
- [src/main/java/com/badbuta/learnspringbootrestfulsqlite/ApiController.java](src/main/java/com/badbuta/learnspringbootrestfulsqlite/ApiController.java)
# Init the database and insert sample data
Please see the [README for Data folder](data/README.md) file
# Start Spring Boot Application
To start this Spring Boot Application:
1. Open VSCode
1. Select Spring Boot Dashboard (Left Toolbar)
1. Rollover the APPS dropdown, click `|>>` button
# TODO
1. Resolve WARN "MyBatis: No MyBatis mapper was found in '[xx.mapper]' package. Please check your configuration."
1. Why `application.properties` - `spring.datasource.url` is requried even the mybatis config exist
1. what should be the correct value? `jdbc:sqlite:data` or `jdbc:sqlite:data:abc` ok ,but `jdbc:sqlite` not ok.
1. In `src/main/java/com/badbuta/learnspringbootrestfulsqlite/ApiController.java`
1. See the TODO
1. Rewrite the controller code better

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*
!.gitignore
!.gitkeep
!README
!README.md
!*.sql

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# Readme for this data folder
This folder contains:
1. The runtime database (SQLite) files - *.sqlite3
1. The SQL scripts for database maintenance:
## Database Maintenance Scripts
| File | Description |
|----|----|
|`schema.sql`|Database schema
|`create-sample-data.sql`|Insert sample rows to the users table
To run the sql script with SQLite3:
```bash
cat <sql script file> | sqlite3 <database file>
```
# Init the database
NOTE: The init script will remove all data. Please backup the data before performing the follow steps.
```bash
cat ../src/main/resources/sqlite/schema.sql | sqlite3 mainapp.sqlite3
```
# Create sample data
```bash
cat ../src/main/resources/sqlite/create-sample-data.sql | sqlite3 mainapp.sqlite3
```

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#!/bin/sh
# ----------------------------------------------------------------------------
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Apache Maven Wrapper startup batch script, version 3.2.0
#
# Required ENV vars:
# ------------------
# JAVA_HOME - location of a JDK home dir
#
# Optional ENV vars
# -----------------
# MAVEN_OPTS - parameters passed to the Java VM when running Maven
# e.g. to debug Maven itself, use
# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
# MAVEN_SKIP_RC - flag to disable loading of mavenrc files
# ----------------------------------------------------------------------------
if [ -z "$MAVEN_SKIP_RC" ] ; then
if [ -f /usr/local/etc/mavenrc ] ; then
. /usr/local/etc/mavenrc
fi
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$HOME/.mavenrc" ] ; then
. "$HOME/.mavenrc"
fi
fi
# OS specific support. $var _must_ be set to either true or false.
cygwin=false;
darwin=false;
mingw=false
case "$(uname)" in
CYGWIN*) cygwin=true ;;
MINGW*) mingw=true;;
Darwin*) darwin=true
# Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
# See https://developer.apple.com/library/mac/qa/qa1170/_index.html
if [ -z "$JAVA_HOME" ]; then
if [ -x "/usr/libexec/java_home" ]; then
JAVA_HOME="$(/usr/libexec/java_home)"; export JAVA_HOME
else
JAVA_HOME="/Library/Java/Home"; export JAVA_HOME
fi
fi
;;
esac
if [ -z "$JAVA_HOME" ] ; then
if [ -r /etc/gentoo-release ] ; then
JAVA_HOME=$(java-config --jre-home)
fi
fi
# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin ; then
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=$(cygpath --unix "$JAVA_HOME")
[ -n "$CLASSPATH" ] &&
CLASSPATH=$(cygpath --path --unix "$CLASSPATH")
fi
# For Mingw, ensure paths are in UNIX format before anything is touched
if $mingw ; then
[ -n "$JAVA_HOME" ] && [ -d "$JAVA_HOME" ] &&
JAVA_HOME="$(cd "$JAVA_HOME" || (echo "cannot cd into $JAVA_HOME."; exit 1); pwd)"
fi
if [ -z "$JAVA_HOME" ]; then
javaExecutable="$(which javac)"
if [ -n "$javaExecutable" ] && ! [ "$(expr "\"$javaExecutable\"" : '\([^ ]*\)')" = "no" ]; then
# readlink(1) is not available as standard on Solaris 10.
readLink=$(which readlink)
if [ ! "$(expr "$readLink" : '\([^ ]*\)')" = "no" ]; then
if $darwin ; then
javaHome="$(dirname "\"$javaExecutable\"")"
javaExecutable="$(cd "\"$javaHome\"" && pwd -P)/javac"
else
javaExecutable="$(readlink -f "\"$javaExecutable\"")"
fi
javaHome="$(dirname "\"$javaExecutable\"")"
javaHome=$(expr "$javaHome" : '\(.*\)/bin')
JAVA_HOME="$javaHome"
export JAVA_HOME
fi
fi
fi
if [ -z "$JAVACMD" ] ; then
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
else
JAVACMD="$(\unset -f command 2>/dev/null; \command -v java)"
fi
fi
if [ ! -x "$JAVACMD" ] ; then
echo "Error: JAVA_HOME is not defined correctly." >&2
echo " We cannot execute $JAVACMD" >&2
exit 1
fi
if [ -z "$JAVA_HOME" ] ; then
echo "Warning: JAVA_HOME environment variable is not set."
fi
# traverses directory structure from process work directory to filesystem root
# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {
if [ -z "$1" ]
then
echo "Path not specified to find_maven_basedir"
return 1
fi
basedir="$1"
wdir="$1"
while [ "$wdir" != '/' ] ; do
if [ -d "$wdir"/.mvn ] ; then
basedir=$wdir
break
fi
# workaround for JBEAP-8937 (on Solaris 10/Sparc)
if [ -d "${wdir}" ]; then
wdir=$(cd "$wdir/.." || exit 1; pwd)
fi
# end of workaround
done
printf '%s' "$(cd "$basedir" || exit 1; pwd)"
}
# concatenates all lines of a file
concat_lines() {
if [ -f "$1" ]; then
# Remove \r in case we run on Windows within Git Bash
# and check out the repository with auto CRLF management
# enabled. Otherwise, we may read lines that are delimited with
# \r\n and produce $'-Xarg\r' rather than -Xarg due to word
# splitting rules.
tr -s '\r\n' ' ' < "$1"
fi
}
log() {
if [ "$MVNW_VERBOSE" = true ]; then
printf '%s\n' "$1"
fi
}
BASE_DIR=$(find_maven_basedir "$(dirname "$0")")
if [ -z "$BASE_DIR" ]; then
exit 1;
fi
MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}; export MAVEN_PROJECTBASEDIR
log "$MAVEN_PROJECTBASEDIR"
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
wrapperJarPath="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar"
if [ -r "$wrapperJarPath" ]; then
log "Found $wrapperJarPath"
else
log "Couldn't find $wrapperJarPath, downloading it ..."
if [ -n "$MVNW_REPOURL" ]; then
wrapperUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
else
wrapperUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
fi
while IFS="=" read -r key value; do
# Remove '\r' from value to allow usage on windows as IFS does not consider '\r' as a separator ( considers space, tab, new line ('\n'), and custom '=' )
safeValue=$(echo "$value" | tr -d '\r')
case "$key" in (wrapperUrl) wrapperUrl="$safeValue"; break ;;
esac
done < "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.properties"
log "Downloading from: $wrapperUrl"
if $cygwin; then
wrapperJarPath=$(cygpath --path --windows "$wrapperJarPath")
fi
if command -v wget > /dev/null; then
log "Found wget ... using wget"
[ "$MVNW_VERBOSE" = true ] && QUIET="" || QUIET="--quiet"
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget $QUIET "$wrapperUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
else
wget $QUIET --http-user="$MVNW_USERNAME" --http-password="$MVNW_PASSWORD" "$wrapperUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
log "Found curl ... using curl"
[ "$MVNW_VERBOSE" = true ] && QUIET="" || QUIET="--silent"
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl $QUIET -o "$wrapperJarPath" "$wrapperUrl" -f -L || rm -f "$wrapperJarPath"
else
curl $QUIET --user "$MVNW_USERNAME:$MVNW_PASSWORD" -o "$wrapperJarPath" "$wrapperUrl" -f -L || rm -f "$wrapperJarPath"
fi
else
log "Falling back to using Java to download"
javaSource="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/MavenWrapperDownloader.java"
javaClass="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/MavenWrapperDownloader.class"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaSource=$(cygpath --path --windows "$javaSource")
javaClass=$(cygpath --path --windows "$javaClass")
fi
if [ -e "$javaSource" ]; then
if [ ! -e "$javaClass" ]; then
log " - Compiling MavenWrapperDownloader.java ..."
("$JAVA_HOME/bin/javac" "$javaSource")
fi
if [ -e "$javaClass" ]; then
log " - Running MavenWrapperDownloader.java ..."
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$wrapperUrl" "$wrapperJarPath") || rm -f "$wrapperJarPath"
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
# If specified, validate the SHA-256 sum of the Maven wrapper jar file
wrapperSha256Sum=""
while IFS="=" read -r key value; do
case "$key" in (wrapperSha256Sum) wrapperSha256Sum=$value; break ;;
esac
done < "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.properties"
if [ -n "$wrapperSha256Sum" ]; then
wrapperSha256Result=false
if command -v sha256sum > /dev/null; then
if echo "$wrapperSha256Sum $wrapperJarPath" | sha256sum -c > /dev/null 2>&1; then
wrapperSha256Result=true
fi
elif command -v shasum > /dev/null; then
if echo "$wrapperSha256Sum $wrapperJarPath" | shasum -a 256 -c > /dev/null 2>&1; then
wrapperSha256Result=true
fi
else
echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available."
echo "Please install either command, or disable validation by removing 'wrapperSha256Sum' from your maven-wrapper.properties."
exit 1
fi
if [ $wrapperSha256Result = false ]; then
echo "Error: Failed to validate Maven wrapper SHA-256, your Maven wrapper might be compromised." >&2
echo "Investigate or delete $wrapperJarPath to attempt a clean download." >&2
echo "If you updated your Maven version, you need to update the specified wrapperSha256Sum property." >&2
exit 1
fi
fi
MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=$(cygpath --path --windows "$JAVA_HOME")
[ -n "$CLASSPATH" ] &&
CLASSPATH=$(cygpath --path --windows "$CLASSPATH")
[ -n "$MAVEN_PROJECTBASEDIR" ] &&
MAVEN_PROJECTBASEDIR=$(cygpath --path --windows "$MAVEN_PROJECTBASEDIR")
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $*"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
# shellcheck disable=SC2086 # safe args
exec "$JAVACMD" \
$MAVEN_OPTS \
$MAVEN_DEBUG_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

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@REM ----------------------------------------------------------------------------
@REM Licensed to the Apache Software Foundation (ASF) under one
@REM or more contributor license agreements. See the NOTICE file
@REM distributed with this work for additional information
@REM regarding copyright ownership. The ASF licenses this file
@REM to you under the Apache License, Version 2.0 (the
@REM "License"); you may not use this file except in compliance
@REM with the License. You may obtain a copy of the License at
@REM
@REM https://www.apache.org/licenses/LICENSE-2.0
@REM
@REM Unless required by applicable law or agreed to in writing,
@REM software distributed under the License is distributed on an
@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@REM KIND, either express or implied. See the License for the
@REM specific language governing permissions and limitations
@REM under the License.
@REM ----------------------------------------------------------------------------
@REM ----------------------------------------------------------------------------
@REM Apache Maven Wrapper startup batch script, version 3.2.0
@REM
@REM Required ENV vars:
@REM JAVA_HOME - location of a JDK home dir
@REM
@REM Optional ENV vars
@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
@REM e.g. to debug Maven itself, use
@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
@REM ----------------------------------------------------------------------------
@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
@echo off
@REM set title of command window
title %0
@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO%
@REM set %HOME% to equivalent of $HOME
if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
@REM Execute a user defined script before this one
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
@REM check for pre script, once with legacy .bat ending and once with .cmd ending
if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %*
:skipRcPre
@setlocal
set ERROR_CODE=0
@REM To isolate internal variables from possible post scripts, we use another setlocal
@setlocal
@REM ==== START VALIDATION ====
if not "%JAVA_HOME%" == "" goto OkJHome
echo.
echo Error: JAVA_HOME not found in your environment. >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
:OkJHome
if exist "%JAVA_HOME%\bin\java.exe" goto init
echo.
echo Error: JAVA_HOME is set to an invalid directory. >&2
echo JAVA_HOME = "%JAVA_HOME%" >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
@REM ==== END VALIDATION ====
:init
@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
@REM Fallback to current working directory if not found.
set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
set EXEC_DIR=%CD%
set WDIR=%EXEC_DIR%
:findBaseDir
IF EXIST "%WDIR%"\.mvn goto baseDirFound
cd ..
IF "%WDIR%"=="%CD%" goto baseDirNotFound
set WDIR=%CD%
goto findBaseDir
:baseDirFound
set MAVEN_PROJECTBASEDIR=%WDIR%
cd "%EXEC_DIR%"
goto endDetectBaseDir
:baseDirNotFound
set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
cd "%EXEC_DIR%"
:endDetectBaseDir
IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
@setlocal EnableExtensions EnableDelayedExpansion
for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
:endReadAdditionalConfig
SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
set WRAPPER_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET WRAPPER_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET WRAPPER_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %WRAPPER_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%WRAPPER_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM If specified, validate the SHA-256 sum of the Maven wrapper jar file
SET WRAPPER_SHA_256_SUM=""
FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperSha256Sum" SET WRAPPER_SHA_256_SUM=%%B
)
IF NOT %WRAPPER_SHA_256_SUM%=="" (
powershell -Command "&{"^
"$hash = (Get-FileHash \"%WRAPPER_JAR%\" -Algorithm SHA256).Hash.ToLower();"^
"If('%WRAPPER_SHA_256_SUM%' -ne $hash){"^
" Write-Output 'Error: Failed to validate Maven wrapper SHA-256, your Maven wrapper might be compromised.';"^
" Write-Output 'Investigate or delete %WRAPPER_JAR% to attempt a clean download.';"^
" Write-Output 'If you updated your Maven version, you need to update the specified wrapperSha256Sum property.';"^
" exit 1;"^
"}"^
"}"
if ERRORLEVEL 1 goto error
)
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%MAVEN_JAVA_EXE% ^
%JVM_CONFIG_MAVEN_PROPS% ^
%MAVEN_OPTS% ^
%MAVEN_DEBUG_OPTS% ^
-classpath %WRAPPER_JAR% ^
"-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
%WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
if ERRORLEVEL 1 goto error
goto end
:error
set ERROR_CODE=1
:end
@endlocal & set ERROR_CODE=%ERROR_CODE%
if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
@REM check for post script, once with legacy .bat ending and once with .cmd ending
if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd"
:skipRcPost
@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
if "%MAVEN_BATCH_PAUSE%"=="on" pause
if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE%
cmd /C exit /B %ERROR_CODE%

72
pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.2.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.badbuta</groupId>
<artifactId>learnspringbootrestfulsqlite</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Project for learning Spring Boot, RESTful API, and SQLite</name>
<description>This is a self-learing project for Spring Boot for RESTful API with SQLite database</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.10.1</version>
</dependency>
<dependency>
<groupId>org.xerial</groupId>
<artifactId>sqlite-jdbc</artifactId>
<version>3.44.1.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>3.0.3</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter-test</artifactId>
<version>3.0.3</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

105
src/main/java/com/badbuta/learnspringbootrestfulsqlite/ApiController.java Normal file
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package com.badbuta.learnspringbootrestfulsqlite;
import org.springframework.web.bind.annotation.RestController;
import com.google.gson.Gson;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.io.Reader;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.springframework.web.bind.annotation.GetMapping;
/**
* The RESTful API Controller Class
* The URL for this API Controller is '/api'
*/
@RestController
@RequestMapping(value = "/api")
public class ApiController {
// TODO Load the config from application.properties rather than var
public static String MY_BATIS_CONFIG = "mybatis/config.xml";
/**
* API Endpoint = /api (or /api/)
*
* @return Simple text
*/
@RequestMapping(value = { "", "/" }, method = RequestMethod.GET)
@ResponseBody
public String getRoot() {
// TODO: it is not a good practice and should return formatted JSON object
return "This is API root";
}
// @GetMapping("/test")
// public String getTest(@RequestParam(name = "a", required = false) String
// valA) {
// return "GET /test, param: a=" + valA;
// }
/**
* Get the user(s) by id (using query-string param)
*
* @param id The ID for
* @return User object in JSON
*/
@GetMapping("users")
public String getUsers() {
Gson gson = new Gson();
try (Reader in = Resources.getResourceAsReader(MY_BATIS_CONFIG)) {
// Create SQL Session Factory from mybatis config
SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);
// Create session
SqlSession session = factory.openSession();
// Select users
List<Map<String, Object>> result = session.selectList("mainapp.mybatis.selectUsers");
return gson.toJson(result);
} catch (IOException e) {
// If exception, return the exception object in JSON
// TODO: it is not a good practice and should return formatted error object
return gson.toJson(e);
}
}
@GetMapping("users/{id}")
public String getUsersById(@RequestParam(name = "id", required = false) String id) {
Gson gson = new Gson();
try (Reader in = Resources.getResourceAsReader(MY_BATIS_CONFIG)) {
// Create SQL Session Factory from mybatis config
SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);
// Create session
SqlSession session = factory.openSession();
// Select users
List<Map<String, Object>> result = session.selectList("mainapp.mybatis.selectUsers");
return gson.toJson(result);
} catch (IOException e) {
// If exception, return the exception object in JSON
// TODO: it is not a good practice and should return formatted error object
return gson.toJson(e);
}
}
}

13
src/main/java/com/badbuta/learnspringbootrestfulsqlite/MainApplication.java Normal file
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package com.badbuta.learnspringbootrestfulsqlite;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MainApplication {
public static void main(String[] args) {
SpringApplication.run(MainApplication.class, args);
}
}

46
src/main/java/com/badbuta/learnspringbootrestfulsqlite/User.java Normal file
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package com.badbuta.learnspringbootrestfulsqlite;
/**
* Domain class - user
*/
public class User {
private int id;
private String name;
private String password;
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return this.password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "{" +
" id='" + getId() + "'" +
", name='" + getName() + "'" +
", password='" + getPassword() + "'" +
"}";
}
}

5
src/main/resources/application.properties Normal file
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spring.datasource.url=jdbc:sqlite:data
# spring.datasource.driver-class-name=org.sqlite.JDBC
# spring.datasource.username=
# spring.datasource.password=
mybatis.config-location=classpath:mybatis/config.xml

9
src/main/resources/mapper/mainapp.xml Normal file
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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="mainapp.mybatis">
<select id="selectUsers" resultType="map">
select * from users
</select>
</mapper>

18
src/main/resources/mybatis/config.xml Normal file
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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<environments default="learnspringbootrestfulsqlite">
<environment id="learnspringbootrestfulsqlite">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="org.sqlite.JDBC"/>
<property name="url" value="jdbc:sqlite:data/mainapp.sqlite3"/>
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="mapper/mainapp.xml"/>
</mappers>
</configuration>

3
src/main/resources/sqlite/create-sample-data.sql Normal file
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-- Insert the sample data for users table:
INSERT INTO users (name,password) VALUES ( 'admin', '1234' );
INSERT INTO users (name,password) VALUES ( 'badbuta', 'abcd' );

6
src/main/resources/sqlite/schema.sql Normal file
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-- Users table
CREATE TABLE users(
id INTEGER PRIMARY KEY AUTOINCREMENT,
name VARCHAR NOT NULL,
password VARCHAR -- Clear-text pwd
);

13
src/test/java/com/badbuta/learnspringbootrestfulsqlite/MainApplicationTests.java Normal file
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package com.badbuta.learnspringbootrestfulsqlite;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class MainApplicationTests {
@Test
void contextLoads() {
}
}