package cn.cetc54.platform.base.controller.common;
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import cn.cetc54.platform.base.entity.File;
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import cn.cetc54.platform.base.manager.impl.LocalFileManage;
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import cn.cetc54.platform.base.service.FileService;
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import cn.cetc54.platform.core.common.exception.PlatformException;
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import io.swagger.annotations.Api;
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import io.swagger.annotations.ApiOperation;
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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.stereotype.Controller;
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import org.springframework.transaction.annotation.Transactional;
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import org.springframework.web.bind.annotation.*;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.net.URLEncoder;
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/**
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* @author x
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*/
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@Slf4j
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@Controller
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@Api(description = "文件管理管理接口")
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@RequestMapping("/platform/file")
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@Transactional
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public class FileController {
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@Autowired
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private FileService fileService;
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@RequestMapping(value = "/view/{id}", method = RequestMethod.GET)
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@ApiOperation(value = "本地存储预览文件")
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public void view(@PathVariable String id, HttpServletResponse response) throws IOException {
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File file = fileService.get(id);
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if(file==null){
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throw new PlatformException("文件ID:"+id+"不存在");
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}
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response.addHeader("Content-Disposition", "attachment; filename=" + URLEncoder.encode(file.getFKey(), "UTF-8"));
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response.setContentLengthLong(file.getSize());
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response.setContentType(file.getType());
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response.addHeader("Accept-Ranges", "bytes");
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if(file.getSize()!=null&&file.getSize()>0){
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response.addHeader("Content-Range", "bytes " + 0 + "-" + (file.getSize()-1) + "/" + file.getSize());
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}
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LocalFileManage.view(file.getUrl(), response);
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}
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}
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