Add crud-mysql module: Spring Boot 4.1 CRUD API on a real MySQL 8.4.6 with JPA, Flyway, validation and ProblemDetail errors

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HhW8LD8r3EigoBaCGrQZx5 Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HhW8LD8r3EigoBaCGrQZx5
2026-10-21 16:43:45 +00:00
parent ba709737de
commit 2996628ff1
27 changed files with 968 additions and 0 deletions
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+# Starts the packaged jar, makes real curl -i calls against it and stops it again. Raw output, headers included,
+# goes to output/05-real-curl.txt.
+#
+#   ./scripts/curl-demo.sh
+#
+# Needs the same MySQL as the tests, and wipes the book table first.
+set -euo pipefail
+cd "$(dirname "$0")/.."
+
+mvn -B -q package -DskipTests
+java -jar target/crud-mysql-1.0.0.jar --server.port=8080 --logging.level.root=WARN > target/app.log 2>&1 &
+PID=$!
+trap 'kill $PID 2>/dev/null || true' EXIT
+for _ in $(seq 1 60); do curl -s -o /dev/null localhost:8080/api/books && break; sleep 1; done
+
+OUT=output/05-real-curl.txt
+H='Content-Type: application/json'
+{
+  echo "# Real curl -i output against the packaged jar (java -jar target/crud-mysql-1.0.0.jar), Date header removed"
+  echo
+  for cmd in \
+    "curl -i -s -X POST localhost:8080/api/books -H '$H' -d '{\"title\":\"Effective Java\",\"author\":\"Joshua Bloch\",\"isbn\":\"9780134685991\",\"price\":45.50}'" \
+    "curl -i -s localhost:8080/api/books/1" \
+    "curl -i -s -X DELETE localhost:8080/api/books/1" \
+    "curl -i -s localhost:8080/api/books/1"; do
+    echo "\$ ${cmd/ -s/}"
+    eval "$cmd" | tr -d '\r' | grep -v '^Date:'
+    echo; echo
+  done
+} > "$OUT"
+cat "$OUT"
@@ -0,0 +1,5 @@
+-- Creates the database and the user the application expects. Run as a MySQL administrator:
+--   mysql -uroot -p < scripts/mysql-setup.sql
+CREATE DATABASE IF NOT EXISTS library;
+CREATE USER IF NOT EXISTS 'library'@'%' IDENTIFIED BY 'library';
+GRANT ALL ON library.* TO 'library'@'%';
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# Regenerates every file under output/.
+#
+#   ./scripts/run-all.sh
+#
+# Needs a JDK 21 or newer, Maven 3.9 and a MySQL 8.4 server reachable with the defaults in
+# src/main/resources/application.properties (localhost:3306, database library, user library, password
+# library), or the same values in DB_URL / DB_USER / DB_PASSWORD. All four transcripts are written by the
+# test suite, so every figure in the article is an assertion that fails the build if it stops being true.
+set -euo pipefail
+cd "$(dirname "$0")/.."
+
+mvn -B test
+
+echo
+echo "output:"
+ls -1 output