package com.tievd.cube.modules.system.controller;
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import cn.hutool.core.io.FileUtil;
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import cn.hutool.core.io.IoUtil;
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import cn.hutool.http.Header;
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import cn.hutool.json.JSONArray;
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import com.tievd.cube.commons.base.Result;
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import com.tievd.cube.modules.system.service.ICommonService;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.Parameter;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.MediaType;
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import org.springframework.util.AntPathMatcher;
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import org.springframework.web.bind.annotation.*;
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import org.springframework.web.multipart.MultipartFile;
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import org.springframework.web.servlet.HandlerMapping;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.File;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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/**
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* 通用API
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*
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* @author 杨欣武
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* @version 2.5.2
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* @apiNote 提供常用API接口（错误提示页面，上传接口）
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* @since 2022-08-11
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*/
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@Slf4j
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@Tag(name = "通用接口")
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@RestController
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@RequestMapping("/sys/common")
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public class CommonController {
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@Autowired
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private ICommonService commonService;
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/**
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* 403
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*
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* @apiNote 没有权限，则会提示该消息
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*/
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@GetMapping("/403")
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@Operation(summary = "403")
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public Result<?> noAuth() {
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return Result.error("没有权限，请联系管理员授权！");
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}
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/**
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* 全局默认异常返回数据
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*/
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@GetMapping("/error")
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@Operation(summary = "全局默认异常返回数据")
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public Result<?> error() {
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return Result.error("默认异常错误，请联系管理员！");
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}
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/**
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* 文件上传
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*
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* @param biz 上传目录
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* @return 存储路径
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* @apiNote 上传到系统指定文件目录
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*/
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@PostMapping("/upload")
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@Operation(summary = "文件上传")
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public Result<?> upload(@Parameter(name = "上传目录") @RequestParam(required = false) String biz,
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@Parameter(name = "文件") @RequestParam(required = false) MultipartFile file) throws IOException {
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if (file == null) {
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return Result.error("没有上传文件！");
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}
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String dbPath = commonService.saveFileToLocal(file, biz);
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return Result.ok(dbPath);
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}
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/**
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* 静态资源访问
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*/
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@GetMapping("/static/**")
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@Operation(summary = "静态资源访问")
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public void view(HttpServletRequest request, HttpServletResponse response) throws IOException {
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String path = (String) request.getAttribute(HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE);
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String bestMatchPattern = (String) request.getAttribute(HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE);
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String filePath = new AntPathMatcher().extractPathWithinPattern(bestMatchPattern, path);
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File file = commonService.viewStaticFile(filePath);
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if (file == null) {
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response.setStatus(404);
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response.setContentType("text/plain");
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response.setCharacterEncoding("UTF-8");
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IoUtil.write(response.getOutputStream(), true, ("该文件不存在！").getBytes(StandardCharsets.UTF_8));
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return;
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}
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response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
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response.addHeader(Header.CONTENT_DISPOSITION.getValue(), "attachment;fileName=" + file.getName());
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FileUtil.writeToStream(file, response.getOutputStream());
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}
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/**
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* 获取枚举类的值列表
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*
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* @param enumClassPath 枚举类的类路径
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* @throws ClassNotFoundException 找不到这个类
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*/
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@GetMapping("/enumValueList")
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@Operation(summary = "获取枚举类的值列表")
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public Result<?> getEnumValueList(@Parameter(name = "类路径") String enumClassPath) throws ClassNotFoundException {
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JSONArray dataArray = commonService.getEnumValueList(enumClassPath);
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return Result.ok(dataArray);
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}
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}
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