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#!/bin/bash
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# ===========================================
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# 学生状态变更处理脚本 - 复学
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# 处理类型: FU_XUE(复学)
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# ===========================================
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set -euo pipefail
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# Load configuration
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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CONFIG_FILE="${SCRIPT_DIR}/data.conf"
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if [[ ! -f "$CONFIG_FILE" ]]; then
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echo "Error: Configuration file $CONFIG_FILE not found!"
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exit 1
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fi
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source "$CONFIG_FILE"
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# Create log directory
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mkdir -p "$LOG_DIR"
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# Log file
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LOG_FILE="${LOG_DIR}/process_student_resume_$(date +%Y%m%d_%H%M%S).log"
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# Lock file to prevent multiple instances
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LOCK_FILE="${SCRIPT_DIR}/process_student_resume.lock"
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# Functions
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log() {
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local level="$1"
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local message="$2"
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local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
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echo "[$timestamp] [$level] $message" | tee -a "$LOG_FILE"
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}
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error_exit() {
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local message="$1"
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log "ERROR" "$message"
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# Remove lock file
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[[ -f "$LOCK_FILE" ]] && rm -f "$LOCK_FILE"
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exit 1
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}
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# Check if script is already running
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if [[ -f "$LOCK_FILE" ]]; then
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if kill -0 $(cat "$LOCK_FILE") 2>/dev/null; then
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log "INFO" "Script is already running (PID: $(cat "$LOCK_FILE"))"
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exit 1
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else
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log "WARN" "Removing stale lock file"
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rm -f "$LOCK_FILE"
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fi
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fi
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# Create lock file
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echo $$ > "$LOCK_FILE"
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# Cleanup function
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cleanup() {
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[[ -f "$LOCK_FILE" ]] && rm -f "$LOCK_FILE"
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log "INFO" "Script execution completed"
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}
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trap cleanup EXIT
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# Database functions
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execute_sql() {
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local sql="$1"
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local result
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result=$(mysql -h"$DB_HOST" -P"$DB_PORT" -u"$DB_USER" -p"$DB_PASS" "$DB_NAME" -e "$sql" 2>&1)
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local exit_code=$?
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if [[ $exit_code -ne 0 ]]; then
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log "ERROR" "SQL execution failed: $sql"
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log "ERROR" "MySQL error: $result"
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return 1
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fi
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echo "$result"
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}
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# Process student resume
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process_student_resume() {
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local record_id="$1"
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local student_id="$2"
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local student_no="$3"
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local change_type="$4"
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local operator_id="${5:-1}"
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log "INFO" "Processing student resume - ID: $record_id, Student: $student_no ($student_id), Type: $change_type"
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# Start transaction
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local transaction_sql="
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START TRANSACTION;
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-- 1. Backup original data to his tables
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INSERT INTO xg_student_msg_his SELECT * FROM xg_student_msg WHERE id = $student_id;
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INSERT INTO sys_user_his SELECT * FROM sys_user WHERE user_id = $student_id;
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-- 2. Update student status to resume (复学)
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UPDATE xg_student_msg SET
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student_status = '3',
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update_by = $operator_id,
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update_time = NOW()
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WHERE id = $student_id;
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-- 3. Enable user account
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UPDATE sys_user SET
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status = '0',
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update_by = $operator_id,
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update_time = NOW()
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WHERE user_id = $student_id AND account_type = '2';
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-- 4. Update change record status
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UPDATE xg_student_status_change SET
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process_status = 1,
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update_by = $operator_id,
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update_time = NOW()
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WHERE id = $record_id;
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COMMIT;
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"
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# Execute transaction
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if execute_sql "$transaction_sql"; then
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log "INFO" "Successfully processed student resume - ID: $record_id, Student: $student_no"
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return 0
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else
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log "ERROR" "Failed to process student resume - ID: $record_id, Student: $student_no"
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return 1
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fi
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}
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# Main function
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main() {
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log "INFO" "Starting student resume processing daemon"
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log "INFO" "Processing type: FU_XUE(复学)"
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log "INFO" "Running in continuous mode with 10-minute intervals"
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# Test database connection
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log "INFO" "Testing database connection..."
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if ! execute_sql "SELECT 1;" >/dev/null 2>&1; then
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error_exit "Database connection failed"
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fi
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log "INFO" "Database connection successful"
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# Main processing loop
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while true; do
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log "INFO" "Starting new resume processing cycle"
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# Get unprocessed records
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local query_sql="
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SELECT id, student_id, student_no, change_type, operator_id
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FROM xg_student_status_change
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WHERE process_status = 0
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AND change_type = 'FU_XUE'
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AND deleted = 0
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ORDER BY create_time ASC
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LIMIT $BATCH_SIZE;
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"
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local records
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records=$(execute_sql "$query_sql")
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# Check if there are records to process
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local record_count
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record_count=$(echo "$records" | wc -l)
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if [[ $record_count -le 1 ]]; then
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log "INFO" "No unprocessed resume records found, waiting..."
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else
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# Remove header line
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records=$(echo "$records" | tail -n +2)
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local processed_count=0
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local failed_count=0
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# Process each record
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while IFS=$'\t' read -r record_id student_id student_no change_type operator_id; do
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# Skip empty lines
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[[ -z "$record_id" ]] && continue
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local retry_count=0
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local success=false
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while [[ $retry_count -lt $MAX_RETRY && $success == false ]]; do
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if process_student_resume "$record_id" "$student_id" "$student_no" "$change_type" "$operator_id"; then
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success=true
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((processed_count++))
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else
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((retry_count++))
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if [[ $retry_count -lt $MAX_RETRY ]]; then
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log "WARN" "Processing failed, retrying in $RETRY_DELAY seconds... (attempt $retry_count/$MAX_RETRY)"
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sleep $RETRY_DELAY
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fi
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fi
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done
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if [[ $success == false ]]; then
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((failed_count++))
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log "ERROR" "Failed to process record after $MAX_RETRY attempts - ID: $record_id"
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fi
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done <<< "$records"
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log "INFO" "Resume processing cycle completed - Processed: $processed_count, Failed: $failed_count"
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fi
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# Wait for configured interval before next cycle
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log "INFO" "Waiting $CYCLE_INTERVAL seconds before next resume processing cycle..."
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sleep $CYCLE_INTERVAL
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done
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}
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# Run main function
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main "$@"
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