下载功能在url里接收参数，在历史预算页面提供下载

src/main/java/handlers/BudgetHandler.java

@@ -179,6 +179,30 @@ public class BudgetHandler {
         }
     }
 
+
+
+    @RequestMapping("/Download/csv/{budgetid}")
+    public void downloadCsv(@PathVariable("budgetid") Long budgetid,HttpServletRequest request, HttpServletResponse response, HttpSession session) {
+        //response.setContentType("application/octet-stream");
+        response.setContentType("text/html;charset=UTF-8");
+        String sessionID = budgetid.toString();
+        try {
+            Budget budget = retrieveBudget(sessionID);
+            //writer = response.getWriter();
+            response.setHeader("content-disposition", "attachment;filename=Budget" + sessionID + ".csv");
+            assert budget != null;
+            //budgetToOutputStream(budget, writer);
+            budgetToOutputStream(budget, response.getOutputStream());
+            System.out.println("Download...............");
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+    }
+
+
+
     @RequestMapping("/Detail")
     public ModelAndView budgetDetailHandler(HttpServletRequest request) {
         String sessionID = getSessionID(request.getCookies());

src/main/webapp/history.jsp

@@ -83,7 +83,12 @@
                     <button class="btn btn-success">查看详情</button>
                 </a>
                 <button class="btn btn-info">修改属性</button>
-                <button class="btn btn-info">下载说明文件</button>
+                <a v-bind:href="'${pageContext.request.contextPath}/Budget/Download/csv/'+budget.id">
+                    <button class="btn btn-success">下载csv</button>
+                </a>
+                <a v-bind:href="'${pageContext.request.contextPath}/Budget/Download/word/'+budget.id">
+                    <button class="btn btn-success">下载word</button>
+                </a>
                 <button class="btn btn-danger" @click="del(budget.id)">删除</button>
             </td>
         </tr>

src/main/webapp/test.jsp

@@ -56,6 +56,7 @@
         </div>
     </div>
 </nav>
+<%--
 
 <button class="btn btn-success" onclick=jsp()>test</button>
 <label id="xxx">123445</label>
@@ -91,6 +92,29 @@ ${pageContext.request.contextPath}<br>
         </tr>
     </table>
 </div>
+--%>
+
+
+<div>
+    <div id="menu">
+        控制
+    </div>
+    <div id="show">展示</div>
+</div>
+<script type="text/javascript">
+    var list=$("#show");
+    var menu=document.getElementById("menu");
+    list.hide();
+    menu.onmouseover=function (ev) {
+        list.show();
+    };
+    menu.onmouseleave=function (ev) {
+        list.hide();
+    };
+
+</script>
+
+
 
 <div id="VueTest">
 <select v-model="num">