@Overridepublic void signForm(HttpServletResponse response, Map<String, Object> map) {    try{        String substring = url.substring(0, url.indexOf("?"));        String substring1 ="'"+ substring.substring(substring.lastIndexOf("/")+1)+"'";        response.setContentType("application/octet-stream");        response.setHeader("Content-Disposition", "attachment;filename="+new String((System.currentTimeMillis()+".sql").getBytes("utf-8"),"ISO-8859-1"));        OutputStream out = response.getOutputStream();        String name=map.get("name").toString();        String sql0="SHOW CREATE TABLE "+name;        Query query0 = entityManager.createNativeQuery(sql0);        List resultList2 = query0.getResultList();        String s1 = JSON.parseArray(JSON.toJSONString(resultList2.get(0)), String.class).get(1)+";";        out.write((s1+System.getProperty("line.separator")).getBytes());        String sql="SELECT table_name, COLUMN_NAME dbName, DATA_TYPE dbType, COLUMN_COMMENT label FROM INFORMATION_SCHEMA.COLUMNS where table_name=" + "'"+name+"'" + "AND table_schema="+substring1;        Query query = entityManager.createNativeQuery(sql);        List<Object> resultList = query.getResultList();        String insetSql="insert into "+name+" (";        String sql2="SELECT ";        for (Object map1:resultList){            List<String> strings = JSON.parseArray(JSON.toJSONString(map1), String.class);            String s = strings.get(2);            String sd = "`" + strings.get(1) + "`,";            if(s.contains("int")){                sql2+="(`" + strings.get(1) + "`+0) "+strings.get(1)+",";            }else{                sql2+=sd;            }            insetSql+=sd;        }        insetSql=insetSql.substring(0,insetSql.length()-1);        sql2=sql2.substring(0,sql2.length()-1);        insetSql+=" )values";        sql2+=" FROM "+name;        Query query2 = entityManager.createNativeQuery(sql2);        query2.unwrap(SQLQuery.class).setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP);        List<Map<String,Object>> resultList1 = query2.getResultList();        for (Map<String,Object> map1 :resultList1){            String insetSql2=insetSql;            insetSql2+="  ( ";            for (Object map2:resultList){                String s = JSON.parseArray(JSON.toJSONString(map2), String.class).get(1);                String type = JSON.parseArray(JSON.toJSONString(map2), String.class).get(2);                if(type.contains("int")||type.equals("Integer")||map1.get(s)==null){                    insetSql2+=map1.get(s)+",";                }else{                    insetSql2+="'"+map1.get(s)+"',";                }            }            insetSql2=insetSql2.substring(0,insetSql2.length()-1)+");";            out.write((insetSql2+System.getProperty("line.separator")).getBytes());        }        out.flush();        out.close();    }catch (Exception e){    }}