documentaction.java

OA系统实现以下功能： a、个人办公,我的办公桌 b、公文管理 c、工作流程 d、组织管理 e. 权限管理

package com.bjsxt.oa.web.actions;

import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.beanutils.ConvertUtils;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;

import com.bjsxt.oa.managers.DocumentManager;
import com.bjsxt.oa.managers.FormManager;
import com.bjsxt.oa.managers.SystemException;
import com.bjsxt.oa.managers.WorkflowManager;
import com.bjsxt.oa.model.ApproveInfo;
import com.bjsxt.oa.model.Document;
import com.bjsxt.oa.model.DocumentProperty;
import com.bjsxt.oa.model.FieldType;
import com.bjsxt.oa.model.FlowForm;
import com.bjsxt.oa.model.FormField;
import com.bjsxt.oa.web.forms.DocumentActionForm;

public class DocumentAction extends BaseAction {

	private DocumentManager documentManager;
	private WorkflowManager workflowManager;
	private FormManager formManager;
	
	public void setDocumentManager(DocumentManager documentManager) {
		this.documentManager = documentManager;
	}

	public void setWorkflowManager(WorkflowManager workflowManager) {
		this.workflowManager = workflowManager;
	}

	//公文管理主界面，显示我的公文列表
	@Override
	protected ActionForward unspecified(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		request.setAttribute("pm", documentManager.searchMyDocuments(currentUser(request).getId()));
		
		return mapping.findForward("index");
	}
	
	/**
	 * 已审公文列表，显示由当前登录人员审核的公文列表
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward approvedList(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		request.setAttribute("pm", documentManager.searchApprovedDocuments(currentUser(request).getId()));
		
		return mapping.findForward("approved_list");
	}
	
	/**
	 * 待审公文列表，显示等待当前登录人员审核的公文列表
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward approvingList(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		request.setAttribute("documents", documentManager.searchApprovingDocuments(currentUser(request).getId()));
		
		return mapping.findForward("approving_list");
	}
	
	/**
	 * 在待审公文列表上，针对某个文档，可以点击打开审批界面，对此文档进行审批
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward approveInput(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		return mapping.findForward("approve_input");
	}
	
	/**
	 * 用户输入审批信息之后，点击保存，对文档进行审批操作
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward approve(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		DocumentActionForm daf = (DocumentActionForm)form;
		
		String comment = daf.getApproveInfo();
		int documentId = daf.getId();
		int approverId = currentUser(request).getId();
		
		ApproveInfo approveInfo = new ApproveInfo();
		approveInfo.setApproveTime(new Date());
		approveInfo.setComment(comment);
		
		documentManager.addApproveInfo(approveInfo, documentId, approverId);
		
		return mapping.findForward("pub_add_success");
	}
	
	/**
	 * 在我的公文或待审公文列表上，点击提交，可打开提交的选择界面
	 * 在这个界面上，列出下一步所有可选的步骤，用户可以选择其中一个
	 * 步骤进行提交操作。系统将按照用户的选择转移到下一个节点
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward submitInput(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		DocumentActionForm daf = (DocumentActionForm)form;
		Document doc = documentManager.findDocument(daf.getId());
		List transitions = workflowManager.searchNextTransitions(currentUser(request).getUsername(),doc.getProcessInstanceId());
		request.setAttribute("steps", transitions);
		return mapping.findForward("submit_input");
	}
	
	/**
	 * 用户选择了其中一个步骤，点击提交
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward submit(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		DocumentActionForm daf = (DocumentActionForm)form;
		
		
//		workflowManager.flowToNextStep(
//				currentUser(request).getUsername(), 
//				doc.getProcessInstanceId(), 
//				daf.getTransitionName());
//		
		documentManager.submitToWorkflow(currentUser(request).getId(), daf.getId(), daf.getTransitionName());
		
		return mapping.findForward("pub_add_success");
	}
	
	/**
	 * 查看公文的审批历史
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward approvedHistory(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		DocumentActionForm daf = (DocumentActionForm)form;
		request.setAttribute("historys", documentManager.searchApproveInfos(daf.getId()));		
		
		return mapping.findForward("approve_history");
	}
	
	public ActionForward del(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		DocumentActionForm daf = (DocumentActionForm)form;
		documentManager.delDocument(daf.getId());
		
		return mapping.findForward("pub_del_success");
	}
	
	/**
	 * 点击添加公文的时候，需要选择相应的流程，此界面列出所有的流程以供选择
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward selectFlow(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		request.setAttribute("workflows", workflowManager.searchAllWorkflows());
		
		return mapping.findForward("select_flow");
	}
	
	/**
	 * 选择了流程之后（即点击流程名称），需要打开公文录入界面
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward addInput(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		return mapping.findForward("add_input");
	}
	
	/**
	 * 添加公文的操作
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return
	 * @throws Exception
	 */
	public ActionForward add(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		DocumentActionForm daf = (DocumentActionForm)form;
		Document document = new Document();
		BeanUtils.copyProperties(document, daf);
		
		//处理Map的数据
		
		//将ActionForm中的Map的数据，按照表单定义对应的类型来进行转换，并设置到document对象即可
		if(daf.getProps().isEmpty()){
			document.setProps(null);
		}else{
			int workflowId = daf.getWorkflowId();
			
			//流程对应的表单定义
			FlowForm flowForm = formManager.findForm(workflowId);
			
			if(flowForm == null){
				document.setProps(null);
			}else{
				
				Map documentProps = new HashMap();
				
				//拿到表单定义对应的所有的域定义
				Set fields = flowForm.getFields();
				
				for (Iterator iter = fields.iterator(); iter.hasNext();) {
					FormField field = (FormField) iter.next();
					
					String propertyName = field.getFieldName();
					FieldType propertyType = field.getFieldType();
					
					//根据表单的属性名称，从Map中将界面上传过来的原始值拿出来
					Object source = daf.getProps().get(propertyName);
					Object target = null;
					
					if(source != null){
						
						//对于输入的字符串
						if(source instanceof String && !propertyType.getType().equals("java.io.File")){
							
							Class targetClass = Class.forName(propertyType.getType());
							
							//利用ConvertUtils工具，将从界面上传过来的字符串
							//转换为FormFiled对应的FieldType所指定类型的对象
							target = ConvertUtils.convert((String)source, targetClass);
						}
						
						//如果表单域是上传文件
						if(propertyType.getType().equals("java.io.File")){
							
							//注意：如果界面上传的是文件，struts可以自动转换为FormFile
							//类型的对象！！！！
							FormFile ff  = (FormFile)source;
							target = ff.getFileData();
						}
						
						//现在，需要将target的值赋予document对象
						if(target == null){
							throw new SystemException("无法处理输入的值！");
						}
						
						DocumentProperty dp = new DocumentProperty();
						String type = propertyType.getType();
						if(type.equals("java.io.File")){
							dp.setJava_io_File((byte[])target);
						}
						if(type.equals("java.lang.Integer")){
							dp.setJava_lang_Integer((Integer)target);
						}
						if(type.equals("java.lang.String")){
							dp.setJava_lang_String((String)target);
						}
						
						documentProps.put(propertyName, dp);
					}
				}
				
				//将documentProps对象赋予document对象的props属性
				document.setProps(documentProps);
			}
		}
		
		if(daf.getContentFile() != null){
			document.setContent(daf.getContentFile().getFileData());
		}
		
		documentManager.addDocument(document, daf.getWorkflowId(), currentUser(request).getId());
		
		return mapping.findForward("pub_add_success");
	}
	
	//下载公文附件
	public ActionForward download(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
		
		DocumentActionForm daf = (DocumentActionForm)form;
		
		Document document = documentManager.findDocument(daf.getId());
		
		response.reset();
		response.setContentType("application/x-download;charset=GBK");
		response.setHeader("Content-Disposition", "attachment;filename=temp.doc");
		
		response.getOutputStream().write(document.getContent());
		
		response.getOutputStream().flush();
		response.getOutputStream().close();
		
		//指示struts，不要对返回值进行处理
		return null;
	}

	public void setFormManager(FormManager formManager) {
		this.formManager = formManager;
	}
	
}