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sql语法兼容问题修复

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冯辉
2026-06-25 15:43:36 +08:00
parent 499f9ab026
commit 3e91d53f89
1 changed files with 30 additions and 10 deletions
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40
ruoyi-bussiness/src/main/java/com/ruoyi/cms/service/impl/InterviewInvitationServiceImpl.java
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@@ -100,22 +100,42 @@ public class InterviewInvitationServiceImpl implements InterviewInvitationServic
log.info("interview_invitation 表创建成功（序列自增）！");
} else {
log.info("interview_invitation 表结构正常，检查新增列...");
// 为已有数据库添加新列（使用 IF NOT EXISTS，兼容 PostgreSQL / HighGo）
try {
stmt.execute("ALTER TABLE interview_invitation ADD COLUMN IF NOT EXISTS company_name varchar(200) NULL");
} catch (Exception e) { log.warn("添加 company_name 列失败: {}", e.getMessage()); }
try {
stmt.execute("ALTER TABLE interview_invitation ADD COLUMN IF NOT EXISTS job_name varchar(200) NULL");
} catch (Exception e) { log.warn("添加 job_name 列失败: {}", e.getMessage()); }
try {
stmt.execute("ALTER TABLE interview_invitation ADD COLUMN IF NOT EXISTS interviewer_name varchar(100) NULL");
} catch (Exception e) { log.warn("添加 interviewer_name 列失败: {}", e.getMessage()); }
// 为已有数据库添加新列：先查 information_schema 判断列是否存在，存在则跳过
// 不使用 IF NOT EXISTS / DO $$ 语法，因为 Druid 1.2.23 StatFilter 无法解析这些 PG 扩展语法
addColumnIfNotExists(stmt, "interview_invitation", "company_name", "varchar(200) NULL");
addColumnIfNotExists(stmt, "interview_invitation", "job_name", "varchar(200) NULL");
addColumnIfNotExists(stmt, "interview_invitation", "interviewer_name", "varchar(100) NULL");
}
} catch (Exception e) {
log.error("初始化表失败: {}", e.getMessage());
}
}
/**
* 幂等添加列：先查 information_schema 判断列是否存在，不存在才执行 ALTER TABLE ADD COLUMN
* 不使用 IF NOT EXISTS / DO $$ 语法，避免 Druid StatFilter mergeSql 报错
*/
private void addColumnIfNotExists(Statement stmt, String tableName, String columnName, String columnDef) {
try {
String checkSql = "SELECT COUNT(*) FROM information_schema.columns WHERE table_name='" + tableName + "' AND column_name='" + columnName + "'";
java.sql.ResultSet rs = stmt.executeQuery(checkSql);
boolean exists = false;
if (rs.next()) {
exists = rs.getInt(1) > 0;
}
rs.close();
if (!exists) {
String alterSql = "ALTER TABLE " + tableName + " ADD COLUMN " + columnName + " " + columnDef;
stmt.execute(alterSql);
log.info("成功添加列: {}.{}", tableName, columnName);
} else {
log.info("列已存在，跳过: {}.{}", tableName, columnName);
}
} catch (Exception e) {
log.warn("添加列 {}.{} 失败: {}", tableName, columnName, e.getMessage());
}
}
@Override
public List<InterviewInvitation> getInterviewInvitationList(InterviewInvitation interviewInvitation) {
return interviewInvitationMapper.getInterviewInvitationList(interviewInvitation);