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| | | import lombok.RequiredArgsConstructor; |
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| | | import lombok.extern.slf4j.Slf4j; |
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| | | import org.dromara.common.core.exception.ServiceException; |
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| | | import org.dromara.common.core.utils.DateUtils; |
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| | | import org.dromara.common.core.utils.StreamUtils; |
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| | | import org.dromara.common.core.utils.StringUtils; |
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| | | import org.dromara.common.json.utils.JsonUtils; |
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| | | import org.springframework.web.multipart.MultipartFile; |
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| | | |
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| | | import java.io.IOException; |
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| | | import java.io.InputStream; |
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| | | import java.nio.charset.StandardCharsets; |
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| | | import java.util.ArrayList; |
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| | | import java.util.Arrays; |
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| | |
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| | | @Override |
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| | | @Transactional(rollbackFor = Exception.class) |
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| | | public boolean importJson(MultipartFile file, String category) { |
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| | | try (InputStream inputStream = file.getInputStream()) { |
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| | | byte[] fileBytes = inputStream.readAllBytes(); |
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| | | String fileContent = new String(fileBytes, StandardCharsets.UTF_8); |
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| | | DefJson defJson = JsonUtils.parseObject(fileContent, DefJson.class); |
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| | | try { |
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| | | DefJson defJson = JsonUtils.parseObject(file.getBytes(), DefJson.class); |
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| | | defJson.setCategory(category); |
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| | | defService.importDef(defJson); |
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| | | } catch (IOException e) { |
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| | | log.error("读取文件流错误: {}", e.getMessage(), e); |
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| | | throw new IllegalStateException("文件读取失败，请检查文件内容", e); |
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| | | } catch (Exception e) { |
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| | | log.error("导入流程定义错误: {}", e.getMessage(), e); |
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| | | throw new IllegalStateException("导入流程定义失败", e); |
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| | | } |
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| | | return true; |
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| | | } |
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| | |
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| | | @Override |
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| | | public void exportDef(Long id, HttpServletResponse response) throws IOException { |
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| | | byte[] data = defService.exportJson(id).getBytes(StandardCharsets.UTF_8); |
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| | | String filename = "workflow_export_" + DateUtils.dateTimeNow() + ".json"; |
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| | | // 设置响应头和内容类型 |
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| | | response.reset(); |
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| | | response.setCharacterEncoding(StandardCharsets.UTF_8.name()); |
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| | | response.setContentType("application/json"); |
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| | | response.setHeader("Content-Disposition", "attachment; filename=" + filename); |
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| | | response.setContentType("application/text"); |
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| | | response.setHeader("Content-Disposition", "attachment;"); |
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| | | response.addHeader("Content-Length", "" + data.length); |
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| | | IoUtil.write(response.getOutputStream(), false, data); |
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| | | } |
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