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update 调整流程定义图片预览

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This commit is contained in:
songgaoshuai 2023-08-25 10:26:49 +08:00
parent 73cf4e2a19
commit 313841839b
3 changed files with 10 additions and 39 deletions
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6
ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/controller/ActProcessDefinitionController.java
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@ -1,6 +1,5 @@
package org.dromara.workflow.controller;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotEmpty;
import lombok.RequiredArgsConstructor;
@ -56,11 +55,10 @@ public class ActProcessDefinitionController extends BaseController {
* 查看流程定义图片
*
* @param processDefinitionId 流程定义id
* @param response 响应
*/
@GetMapping("/processDefinitionImage/{processDefinitionId}")
public void processDefinitionImage(@PathVariable String processDefinitionId, HttpServletResponse response) {
iActProcessDefinitionService.processDefinitionImage(processDefinitionId, response);
public R<String> processDefinitionImage(@PathVariable String processDefinitionId) {
return R.ok("操作成功", iActProcessDefinitionService.processDefinitionImage(processDefinitionId));
}
/**

5
ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/IActProcessDefinitionService.java
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@ -1,6 +1,5 @@
package org.dromara.workflow.service;
import jakarta.servlet.http.HttpServletResponse;
import org.dromara.common.mybatis.core.page.TableDataInfo;
import org.dromara.workflow.domain.bo.ProcessDefinitionBo;
import org.dromara.workflow.domain.vo.ProcessDefinitionVo;
@ -34,9 +33,9 @@ public interface IActProcessDefinitionService {
* 查看流程定义图片
*
* @param processDefinitionId 流程定义id
* @param response 响应
* @return 结果
*/
void processDefinitionImage(String processDefinitionId, HttpServletResponse response);
String processDefinitionImage(String processDefinitionId);
/**
* 查看流程定义xml文件

38
ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/ActProcessDefinitionServiceImpl.java
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@ -1,15 +1,15 @@
package org.dromara.workflow.service.impl;
import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.codec.Base64;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.io.IoUtil;
import cn.hutool.core.util.ObjectUtil;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import jakarta.servlet.ServletOutputStream;
import jakarta.servlet.http.HttpServletResponse;
import lombok.RequiredArgsConstructor;
import lombok.SneakyThrows;
import org.apache.commons.io.IOUtils;
import org.dromara.common.core.exception.ServiceException;
import org.dromara.common.core.utils.StringUtils;
@ -134,38 +134,12 @@ public class ActProcessDefinitionServiceImpl implements IActProcessDefinitionSer
* 查看流程定义图片
*
* @param processDefinitionId 流程定义id
* @param response 响应
*/
@SneakyThrows
@Override
public void processDefinitionImage(String processDefinitionId, HttpServletResponse response) {
InputStream inputStream = null;
try {
// 设置页面不缓存
response.setHeader("Pragma", "no-cache");
response.addHeader("Cache-Control", "must-revalidate");
response.addHeader("Cache-Control", "no-cache");
response.addHeader("Cache-Control", "no-store");
response.setDateHeader("Expires", 0);
inputStream = repositoryService.getProcessDiagram(processDefinitionId);
// 响应相关图片
response.setContentType("image/png");
byte[] bytes = IOUtils.toByteArray(inputStream);
ServletOutputStream outputStream = response.getOutputStream();
outputStream.write(bytes);
outputStream.flush();
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public String processDefinitionImage(String processDefinitionId) {
InputStream inputStream = repositoryService.getProcessDiagram(processDefinitionId);
return Base64.encode(IOUtils.toByteArray(inputStream));
}
/**