在SAP系统中，通过SE11显示一个table的内容，可以发现ALV grid的显示界面上有个spread sheet的标准按钮，点击这个按钮可以将显示的内容下载成excel文件，其中也包括扩展名.xlsx的文件。
这个功能很方便，因为下载的结果和ALV中看到的是一样的。
debug研究了一下标准代码，发现是将需要下载的内表先转换成XML stream，然后再通过gui_download的BIN模式将xml stream下载成.xlsx文件。
写了一个简单的程序供大家参考
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 |
REPORT ztest_alv_download. DATA:git_vbap TYPE STANDARD TABLE OF vbap. DATA:git_fcat TYPE lvc_t_fcat, gwa_layout TYPE lvc_s_layo. DATA: l_path TYPE string, l_filename TYPE string. START-OF-SELECTION. SELECT * INTO TABLE git_vbap FROM vbap UP TO 100 ROWS. CALL FUNCTION ‘LVC_FIELDCATALOG_MERGE‘ EXPORTING i_structure_name = ‘VBAP‘ CHANGING ct_fieldcat = git_fcat "生成下载excel文件的头--reptext字段 EXCEPTIONS inconsistent_interface = 1 program_error = 2 OTHERS = 3. gwa_layout-zebra = ‘X‘. gwa_layout-sel_mode = ‘A‘. gwa_layout-cwidth_opt = ‘X‘. CALL FUNCTION ‘REUSE_ALV_GRID_DISPLAY_LVC‘ EXPORTING i_callback_program = sy-repid i_callback_pf_status_set = ‘FRM_STATUS_SET‘ i_callback_user_command = ‘FRM_USER_COMMAND‘ is_layout_lvc = gwa_layout it_fieldcat_lvc = git_fcat TABLES t_outtab = git_vbap[] EXCEPTIONS program_error = 1 OTHERS = 2. IF sy-subrc <> 0. * Implement suitable error handling here ENDIF. FORM frm_status_set USING rt_extab TYPE slis_t_extab. SET PF-STATUS ‘S0001‘. ENDFORM. "frm_status_set FORM frm_user_command USING r_ucomm TYPE sy-ucomm rs_selfield TYPE slis_selfield. * Local Variable Declare DATA: l_filename TYPE string. IF r_ucomm = ‘DOWN‘. * get file name PERFORM frm_get_directory CHANGING l_filename. * download PERFORM export_to_excel USING l_filename. ENDIF. ENDFORM. FORM frm_get_directory CHANGING c_filename TYPE string. DATA : l_title TYPE string, l_filename TYPE string, "file name l_path TYPE string VALUE ‘C:\TEMP‘, "path l_fullpath TYPE string, "full path l_result TYPE i. "result return l_title = ‘Save as...‘. CALL METHOD cl_gui_frontend_services=>file_save_dialog EXPORTING window_title = l_title default_extension = ‘XLSX‘ default_file_name = ‘Download.XLSX‘ * with_encoding = * file_filter = initial_directory = l_path prompt_on_overwrite = ‘X‘ CHANGING filename = l_filename path = l_path fullpath = l_fullpath user_action = l_result * file_encoding = EXCEPTIONS cntl_error = 1 error_no_gui = 2 not_supported_by_gui = 3 OTHERS = 4. IF sy-subrc <> 0. MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4. ELSE. c_filename = l_filename. "l_path. ENDIF. ENDFORM. *&---------------------------------------------------------------------* *& Form EXPORT_TO_EXCEL *&---------------------------------------------------------------------* * text *----------------------------------------------------------------------* * -->P_L_FILENAME text *----------------------------------------------------------------------* FORM export_to_excel USING i_filename. DATA: l_length TYPE i, l_xml_stream TYPE xml_rawdata, l_flavour TYPE string, l_version TYPE string. DATA: lr_alv_new_data TYPE REF TO data, lr_result_data TYPE REF TO cl_salv_ex_result_data_table. DATA: ls_xml_choice TYPE if_salv_bs_xml=>s_type_xml_choice, xml TYPE xstring. GET REFERENCE OF git_vbap INTO lr_alv_new_data. lr_result_data = cl_salv_ex_util=>factory_result_data_table( * t_selected_rows = lt_lvc_row * t_selected_columns = lt_sel_cols * t_selected_cells = lt_sel_cells r_data = lr_alv_new_data * s_layout = lr_grid->m_cl_variant->ms_layout t_fieldcatalog = git_fcat * t_sort = lr_grid->m_cl_variant->mt_sort * t_filter = lr_grid->m_cl_variant->mt_filter * t_hyperlinks = lr_grid->mt_hyperlinks * s_current_cell = ls_cur_cell * hyperlink_entry_column = ls_hyper_entry * dropdown_entry_column = ls_dropdown_entry * r_top_of_list = lr_top_of_list * r_end_of_list = lr_end_of_list * t_dropdown_values = lt_drdn ). CASE cl_salv_bs_a_xml_base=>get_version( ). WHEN if_salv_bs_xml=>version_25. l_version = if_salv_bs_xml=>version_25. WHEN if_salv_bs_xml=>version_26. l_version = if_salv_bs_xml=>version_26. " = 2.6 ENDCASE. l_flavour = if_salv_bs_c_tt=>c_tt_xml_flavour_export. "Flavor for Complete ALV XML CALL METHOD cl_salv_bs_tt_util=>if_salv_bs_tt_util~transform EXPORTING xml_type = if_salv_bs_xml=>c_type_xlsx "XLSX xml_version = l_version r_result_data = lr_result_data xml_flavour = l_flavour gui_type = if_salv_bs_xml=>c_gui_type_gui "Y6DK066330 IMPORTING xml = xml. IF NOT i_filename IS INITIAL. CALL FUNCTION ‘SCMS_XSTRING_TO_BINARY‘ EXPORTING buffer = xml IMPORTING output_length = l_length TABLES binary_tab = l_xml_stream. CALL METHOD cl_gui_frontend_services=>gui_download EXPORTING bin_filesize = l_length filetype = ‘BIN‘ filename = i_filename CHANGING data_tab = l_xml_stream EXCEPTIONS OTHERS = 1. IF sy-subrc <> 0. * MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO * WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4. ENDIF. ENDIF. ENDFORM. |
在status上加了两个按钮，一个是标准的spreadsheet按钮(&XXL)，一个是自定义的按钮(DOWN)，供下载结果对比使用。
代码简单说明：
1） cl_salv_bs_tt_util=>if_salv_bs_tt_util~transform是用来指定下载的excel格式的，也就是模拟了标准按钮的那个format选择步骤，这个类方法中用到了接口if_salv_bs_xml中的一些属性，10就标识是下载成.xlsx格式的文件。
2) SCMS_XSTRING_TO_BINARY可以将Xtring转化成二进制格式并保存到内表中
以上。
原文地址：https://www.cnblogs.com/lvdong18847870057/p/12544104.html