增加查看流程图功能

guns-admin/src/main/java/com/stylefeng/guns/config/FlowableConfig.java

@@ -3,6 +3,7 @@ package com.stylefeng.guns.config;
 import com.alibaba.druid.pool.DruidDataSource;
 import com.stylefeng.guns.config.properties.GunsFlowableProperties;
 import com.stylefeng.guns.core.datasource.DruidProperties;
+import com.stylefeng.guns.core.flowable.GunsDefaultProcessDiagramGenerator;
 import org.flowable.spring.SpringAsyncExecutor;
 import org.flowable.spring.SpringProcessEngineConfiguration;
 import org.flowable.spring.boot.AbstractProcessEngineAutoConfiguration;
@@ -43,6 +44,10 @@ public class FlowableConfig extends AbstractProcessEngineAutoConfiguration {
             PlatformTransactionManager transactionManager,
             SpringAsyncExecutor springAsyncExecutor) throws IOException {
 
-        return this.baseSpringProcessEngineConfiguration(flowableDataSource(), transactionManager, springAsyncExecutor);
+        SpringProcessEngineConfiguration configuration = this.baseSpringProcessEngineConfiguration(flowableDataSource(), transactionManager, springAsyncExecutor);
+        configuration.setActivityFontName("宋体");
+        configuration.setLabelFontName("宋体");
+        configuration.setProcessDiagramGenerator(new GunsDefaultProcessDiagramGenerator());
+        return configuration;
     }
 }

guns-admin/src/main/java/com/stylefeng/guns/modular/flowable/controller/ExpenseController.java

@@ -3,20 +3,17 @@ package com.stylefeng.guns.modular.flowable.controller;
 import com.baomidou.mybatisplus.mapper.EntityWrapper;
 import com.stylefeng.guns.common.persistence.model.Expense;
 import com.stylefeng.guns.core.base.controller.BaseController;
-import com.stylefeng.guns.core.log.LogObjectHolder;
 import com.stylefeng.guns.core.shiro.ShiroKit;
 import com.stylefeng.guns.modular.flowable.service.IExpenseService;
 import com.stylefeng.guns.modular.flowable.warpper.ExpenseWarpper;
-import org.flowable.engine.RuntimeService;
-import org.flowable.engine.TaskService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
 
+import java.io.IOException;
 import java.util.List;
 import java.util.Map;
 
@@ -35,12 +32,6 @@ public class ExpenseController extends BaseController {
     @Autowired
     private IExpenseService expenseService;
 
-    @Autowired
-    private RuntimeService runtimeService;
-
-    @Autowired
-    private TaskService taskService;
-
     /**
      * 跳转到报销管理首页
      */
@@ -58,14 +49,15 @@ public class ExpenseController extends BaseController {
     }
 
     /**
-     * 跳转到修改报销管理
+     * 查看当前流程图
      */
     @RequestMapping("/expense_update/{expenseId}")
-    public String expenseUpdate(@PathVariable Integer expenseId, Model model) {
-        Expense expense = expenseService.selectById(expenseId);
-        model.addAttribute("item", expense);
-        LogObjectHolder.me().set(expense);
-        return PREFIX + "expense_edit.html";
+    public void expenseView(@PathVariable Integer expenseId) {
+        try {
+            expenseService.printProcessImage(expenseId);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 
     /**

guns-admin/src/main/java/com/stylefeng/guns/modular/flowable/service/IExpenseService.java

@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.service.IService;
 import com.stylefeng.guns.common.persistence.model.Expense;
 import com.stylefeng.guns.modular.flowable.model.TaskVo;
 
+import java.io.IOException;
 import java.util.List;
 
 /**
@@ -41,4 +42,9 @@ public interface IExpenseService extends IService<Expense> {
      */
     List<TaskVo> getProcessList();
 
+    /**
+     * 绘画当前流程图
+     */
+    void printProcessImage(Integer expenseId) throws IOException;
+
 }

guns-admin/src/main/java/com/stylefeng/guns/modular/flowable/service/impl/ExpenseServiceImpl.java

@@ -7,16 +7,22 @@ import com.stylefeng.guns.common.constant.state.ExpenseState;
 import com.stylefeng.guns.common.persistence.dao.ExpenseMapper;
 import com.stylefeng.guns.common.persistence.model.Expense;
 import com.stylefeng.guns.core.shiro.ShiroKit;
+import com.stylefeng.guns.core.support.HttpKit;
 import com.stylefeng.guns.modular.flowable.model.TaskVo;
 import com.stylefeng.guns.modular.flowable.service.IExpenseService;
-import org.flowable.engine.RuntimeService;
-import org.flowable.engine.TaskService;
+import org.flowable.bpmn.model.BpmnModel;
+import org.flowable.engine.*;
+import org.flowable.engine.runtime.Execution;
 import org.flowable.engine.runtime.ProcessInstance;
+import org.flowable.image.ProcessDiagramGenerator;
 import org.flowable.task.api.Task;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -38,6 +44,12 @@ public class ExpenseServiceImpl extends ServiceImpl<ExpenseMapper, Expense> impl
     @Autowired
     private TaskService taskService;
 
+    @Autowired
+    private RepositoryService repositoryService;
+
+    @Autowired
+    private ProcessEngine processEngine;
+
     @Override
     @Transactional(rollbackFor = Exception.class)
     public void add(Expense expense) {
@@ -127,4 +139,50 @@ public class ExpenseServiceImpl extends ServiceImpl<ExpenseMapper, Expense> impl
         }
         return taskVos;
     }
+
+    @Override
+    public void printProcessImage(Integer expenseId) throws IOException {
+        Expense expense = this.selectById(expenseId);
+        String processId = expense.getProcessId();
+        ProcessInstance pi = runtimeService.createProcessInstanceQuery().processInstanceId(processId).singleResult();
+        Task task = taskService.createTaskQuery().processInstanceId(pi.getId()).singleResult();
+
+        //使用流程实例ID，查询正在执行的执行对象表，返回流程实例对象
+        String InstanceId = task.getProcessInstanceId();
+        List<Execution> executions = runtimeService
+                .createExecutionQuery()
+                .processInstanceId(InstanceId)
+                .list();
+
+        //得到正在执行的Activity的Id
+        List<String> activityIds = new ArrayList<>();
+        List<String> flows = new ArrayList<>();
+        for (Execution exe : executions) {
+            List<String> ids = runtimeService.getActiveActivityIds(exe.getId());
+            activityIds.addAll(ids);
+        }
+
+        //获取流程图
+        BpmnModel bpmnModel = repositoryService.getBpmnModel(pi.getProcessDefinitionId());
+        ProcessEngineConfiguration engconf = processEngine.getProcessEngineConfiguration();
+        ProcessDiagramGenerator diagramGenerator = engconf.getProcessDiagramGenerator();
+        InputStream in = diagramGenerator.generateDiagram(bpmnModel, "png", activityIds, flows, engconf.getActivityFontName(), engconf.getLabelFontName(), engconf.getAnnotationFontName(), engconf.getClassLoader(), 1.0);
+        OutputStream out = null;
+        byte[] buf = new byte[1024];
+        int legth = 0;
+        try {
+            out = HttpKit.getResponse().getOutputStream();
+            while ((legth = in.read(buf)) != -1) {
+                out.write(buf, 0, legth);
+            }
+        } finally {
+            if (in != null) {
+                in.close();
+            }
+            if (out != null) {
+                out.close();
+            }
+        }
+    }
 }
+

guns-admin/src/main/webapp/WEB-INF/view/flowable/expense/expense_edit.html

-@layout("/common/_container.html"){
-<div class="ibox float-e-margins">
-    <div class="ibox-content">
-        <div class="form-horizontal">
-
-            <input type="hidden" id="id" value="${item.id}">
-
-            <div class="row">
-                <div class="col-sm-12">
-                    <#input id="money" name="报销金额" value="${item.money}" disabled="disabled"/>
-                    <#input id="desc" name="描述" value="${item.desc}" disabled="disabled"/>
-                </div>
-            </div>
-            <div class="row btn-group-m-t">
-                <div class="col-sm-10">
-                    <#button btnCss="danger" name="取消" id="cancel" icon="fa-eraser" clickFun="ExpenseInfoDlg.close()"/>
-                </div>
-            </div>
-        </div>
-
-    </div>
-</div>
-<script src="${ctxPath}/static/modular/flowable/expense/expense_info.js"></script>
-@}

guns-admin/src/main/webapp/static/modular/flowable/expense/expense.js

@@ -29,13 +29,13 @@ Expense.initColumn = function () {
 };
 
 /**
- * 查看审核记录
+ * 流程详情
  */
 Expense.findRecord = function (id) {
     var index = layer.open({
         type: 2,
-        title: '报销管理详情',
-        area: ['600px', '350px'], //宽高
+        title: '流程详情',
+        area: ['1000px', '500px'], //宽高
         fix: false, //不固定
         maxmin: true,
         content: Feng.ctxPath + '/expense/expense_update/' + id