ssh

1.第一个页面

 <tr>
       <td style="background-color: plum"><strong>选择项目</strong></td>
          <td>
                 <select name="p_id">
                  <s:iterator value="projects" >
                 <option  value="<s:property value='id'/>"><s:property value="projectName"/></option>
                  </s:iterator>
                </select>
             </td>
       <td><input type="submit" value="提交"/></td>
      </tr>

2.在第第一个页面拿到ID

  <td>
         <input type="hidden" name="pid" value="${param.p_id }"/>
         <input type="text" name="workorder.executor"/>
        </td>

3.在Action 中根据ID添加

    private int pid;//注入一个id
    public String list(){
        list=workOrderService.findworkorder();
        return "list";
    }
    
      public String add(){
         workorder.setCreateDate(new Date());
         System.out.println(projectService.findprojectById(pid));
         workorder.setProject(projectService.findprojectById(pid));
         workOrderService.saveWorkOrder(workorder);
          return "add";
     }