一、安装包

PoorMansTSqlFormatterLib

二、代码实现

using Microsoft.AspNetCore.Mvc;
using PoorMansTSqlFormatterLib.Formatters;
using PoorMansTSqlFormatterLib.Parsers;
using PoorMansTSqlFormatterLib.Tokenizers;namespace SaaS.OfficialWebSite.Web.Controllers
{public class SqlFormatController : Controller{public IActionResult Index(){return View();}[HttpPost]public IActionResult FormatSql([FromBody] FormatRequest request){try{var options = new TSqlStandardFormatterOptions{IndentString = request.Options.IndentWithTabs ? "\t" : "    ",SpacesPerTab = 4,MaxLineWidth = 999,KeywordStandardization = request.Options.UppercaseKeywords,TrailingCommas = request.Options.TrailingCommas,SpaceAfterExpandedComma = request.Options.SpaceAfterExpandedComma,ExpandCommaLists = true,ExpandBooleanExpressions = true,ExpandCaseStatements = true,ExpandBetweenConditions = true,ExpandInLists = true,BreakJoinOnSections = true,UppercaseKeywords = request.Options.UppercaseKeywords};var tokenizer = new TSqlStandardTokenizer();var parser = new TSqlStandardParser();var formatter = new TSqlStandardFormatter(options);var tokenized = tokenizer.TokenizeSQL(request.Sql);var parsed = parser.ParseSQL(tokenized);var formattedSql = formatter.FormatSQLTree(parsed);return Ok(new { formattedSql });}catch (Exception ex){return BadRequest(new { error = ex.Message });}}}public class FormatRequest{public string Sql { get; set; }public FormatOptions Options { get; set; }}public class FormatOptions{public bool IndentWithTabs { get; set; }public bool UppercaseKeywords { get; set; }public bool TrailingCommas { get; set; }public bool SpaceAfterExpandedComma { get; set; }}
}

运行效果：SQL 语句格式化