package framework.base;
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import java.io.File;
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import java.util.List;
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import java.util.Map;
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import javax.servlet.http.HttpServletRequest;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import framework.fileUpload.FileUploadHelper;
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import framework.fileUpload.FileUploadHelper.UploadFile;
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import framework.mybatis.pageAction.PageUtil;
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import framework.startup.FrameUtil;
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/**
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* 全部控制器的基类，提供控制器的工具
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*
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* @author liuyajun, 8384503@qq.com
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* @date 2016年1月13日
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* @time 上午8:32:35
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*/
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public abstract class FrameBaseController {
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/**
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* 下载文件
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* TODO: 需要保证能够使用中文URL
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*
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* @param f
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* @param name 另取名字
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* @param delete
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*/
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public String downloadFile(File f, String name, boolean delete) {
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String furi = f.toURI().toString();
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String rootUri = new File(FrameUtil.getWebRoot()).toURI().toString();
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int pos = furi.indexOf(rootUri);
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if(pos==0 && !furi.contains("/WEB-INF/")){
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furi = furi.substring(rootUri.length());
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if(!furi.startsWith("/")){
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furi="/"+furi;
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}
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this.getRequest().setAttribute("downloadFileURL", furi);
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}
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this.getRequest().setAttribute("downloadFile", f);
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this.getRequest().setAttribute("downloadFileName", name);
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this.getRequest().setAttribute("downloadFileDelete", Boolean.valueOf(delete));
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return "forward:/frame-jsp/downloadFile.jsp";
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}
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/**
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* 通过上传控件的名称过滤上传文件，<input type="file" name="inputName" ...
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* @param uploadList
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* @param inputName
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* @return
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*/
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public List<UploadFile> getUploadFileByInputName(
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List<UploadFile> uploadList, String inputName){
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return FileUploadHelper.getUploadFileByInputName(uploadList, inputName);
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}
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/**
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* 得到全部的上传文件
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* @return
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*/
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public List<UploadFile> getAllUploadFile() {
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return FileUploadHelper.getAllUploadFile(this.getRequest());
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}
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/**
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* 生成分页查询的参数，去调用正常的mybatis查询
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* @param param 查询条件，可以为 null
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* @return
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*/
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public Map<String, Object> wrapPageSearchParam(Map<String,Object> param){
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return PageUtil.wrapPageSearchParamMap(this.getRequest(), param);
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}
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/**
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* request.setAttribute(key, val);
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*
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* @param key
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* @param val
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*/
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public void setAttribute(String key, Object val){
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this.getRequest().setAttribute(key, val);
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}
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public HttpServletRequest getRequest(){
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HttpServletRequest req = ((ServletRequestAttributes)
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RequestContextHolder.getRequestAttributes()).getRequest();
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return req;
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}
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public RuntimeException exception(Throwable t){
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return new RuntimeException(t);
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}
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public RuntimeException exception(String msg){
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return new RuntimeException(msg);
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}
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public boolean isEmpty(String str){
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return str==null || str.trim().length()==0;
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}
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/**
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* 设置ajax返回内容，并且提供返回页面<br/>
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* 用在 controller 中 String 返回类型(非@ResonseBody)的方法中
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* @param content
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* @return
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*/
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public String ajax(String content){
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HttpServletRequest req = getRequest();
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req.setAttribute("content", content);
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return "forward:/frame-jsp/ajax.jsp";
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}
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}
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