struts2

1.action 乱码

<constant name="struts.i18n.encoding" value="GBK"/>

2.action 获取上下文

            //ServletActionContext.getRequest().setCharacterEncoding("UTF-8");
            //String t = ServletActionContext.getRequest().getParameter("title");
            //result = new String(input.getBytes("iso-8859-1"),"utf-8");
            
            /*String requestEncoding = ServletActionContext.getRequest().getCharacterEncoding();
            String responseEncoding = ServletActionContext.getResponse().getCharacterEncoding();

3.struts2文件下载

<action name="downloadHistory" class="HistoryAction" method="download">
            <result name="success" type="stream">
                <!-- 下载文件的文件类型 -->
                <param name="contentType">${contentType}</param>
                <!-- 下载文件的来源流 -->
                <param name="inputName">inputStream</param>
                <param name="contentDisposition">attachment;filename="${fileName}"</param>
                <!-- 指定下载文件的缓冲大小 -->
                <param name="bufferSize">1024000</param>
            </result>
        </action>

/**
     * 下载附件
     * @return
     */
    public String download(){
        try{
            Map<String,String> map=new HashMap<String,String>();
            map.put("id", id);
            HistoryWebService historyWebService = new HistoryWebService();
            Map resultMap=historyWebService.selectFujian(map);
            DoctranFujianBean fujian=null;
            if(resultMap!=null && !resultMap.isEmpty()){
                fujian=(DoctranFujianBean)resultMap.get("fujian");
                fileName=fujian.getFilename();
                fileName = new String(fileName.getBytes(), "ISO8859-1"); 
                contentType=fujian.getFiletype();
                inputStream=new ByteArrayInputStream(fujian.getFilecontent());
            }
            return SUCCESS;
        }catch(Exception e){
            log.error(e.toString());
            e.printStackTrace();
            return NONE;
        }
        
    }

struts2返回json

public String info(){

   HttpServletResponse response = ServletActionContext.getResponse();
   response.setContentType("text/html;charset=GBK");
   response.getWriter().print(strInfo);
   return null;
}

struts2 返回freemarker

<action name="account_*" class="LocalAccountAction" method="{1}">
            <result name="success" type="freemarker">
                <param name="location">/com/jit/ftl/structure.ftl</param>  
                <param name="contentType">application/xml</param>  
            </result>
            <result name="getlocal">localaccount.jsp</result>
        </action>        

struts2 重定向

<action name="deleteByDidFromInbox" class="InboxAction" method="deleteByDid">
            <result name="inboxAction" type="redirect-action">
                <param name="actionName">inbox</param>
            </result>
        </action>

 struts2 重定向传参

<action name="recieve" class="RecieveAction">
            <result name="success" type="redirect-action">
                <param name="actionName">inbox</param>
                <param name="receiveNum">${receiveNum}</param>
                <param name="saveNum">${saveNum}</param>
                <param name="errNum">${errNum}</param>
                <param name="errInfo">${errInfo}</param>
            </result>
            <result name="forwardDraftAction" type="redirect-action">
                <param name="actionName">draftbox</param>
            </result>
            <result name="sessionOut">error/sessionout.jsp</result>
        </action>