1、业务背景
业务在销售订单中，通过长文本描述，记录了一些生产备注信息，如生产标准、客户要求等等。要求开发一个报表，能够方便查看和导出长文本信息。
2、实现效果
由于ALV列表长文本显示不友好，且长度有限制，仅能显示128位，故考虑双击展示长文本详细内容，最终实现效果如下：
ALV列表：
双击行详情：
超链接支持右键下载：
3、开发代码
3.1、拼接html
FUNCTION zmmfm056h.
*"----------------------------------------------------------------------
*"*"本地接口：
*" EXPORTING
*" REFERENCE(EV_HTML) TYPE STRING
*" TABLES
*" IT_DATA STRUCTURE ZSMM114
*"----------------------------------------------------------------------
"说明：Web页面调试工具：https://www.runoob.com/try/try.php?filename=tryhtml_tables
types:begin of ty_str,
str(1000),
END OF ty_str.
TYPES: BEGIN OF ty_url,
name TYPE string,
url TYPE string,
END OF ty_url.
DATA: lt_str TYPE TABLE OF ty_str,
lt_url TYPE TABLE OF ty_url WITH HEADER LINE.
IF it_data[] IS INITIAL.
ev_html = |<!DOCTYPE html><html><head><title>abap show html</title></head><body><p>请输入要展示的数据</p></body></html>|.
RETURN.
ENDIF.
SORT it_data[] BY vbeln posnr.
ev_html = |<!DOCTYPE html><html><head><title>明细数据</title></head><body link="#0563C1" vlink="#954F72" style="word-wrap:break-word">|
&& |<h1 style="text-align:center;">销售订单生产备注信息</h1>|
&& |<h4 style="text-align:center;">导出人：{ sy-uname } 导出日期：{ sy-datum }</h4>|.
LOOP AT it_data[] ASSIGNING FIELD-SYMBOL(<fs_data>).
AT NEW vbeln.
ev_html = ev_html
&& |<h3 style="text-align:left;">序号：{ sy-index }</h3>|
&& |<table border=1 width=800 style='border-collapse:collapse;table-layout:fixed;'>|
&& | <tr style='font-family:arial;color:black;font-weight:bold;font-size:16px;text-align:center'>|
&& | <td width=160>计划编号</td><td width=160>客户参考</td><td width=160>CRM下单人员</td><td width=160>销售订单类型</td><td width=160>销售订单号</td></tr>|
&& | <tr style='text-align:center'><td>{ <fs_data>-bstkd_e }</td><td>{ <fs_data>-bstnk }</td>|
&& | <td>{ <fs_data>-zzxdry }</td><td>{ <fs_data>-auart }</td><td>{ <fs_data>-vbeln }</td></tr>|
&& | <tr><td style='font-family:arial;color:black;font-weight:bold;font-size:16px;text-align:center'>抬头生产备注</td><td colspan=4>{ <fs_data>-zscbz1 }</td></tr>|
&& | <tr><td style='font-family:arial;color:black;font-weight:bold;font-size:16px;text-align:center'>环保技术要求</td><td colspan=4>{ <fs_data>-zhbjsyq }</td></tr>|
.
IF <fs_data>-zfiles IS INITIAL.
ev_html = ev_html && | <tr><td style='font-family:arial;color:black;font-weight:bold;font-size:17px;text-align:center'>附件名称及链接</td>|
&& | <td colspan=4>[无附件]</td></tr>|.
ELSE.
SPLIT <fs_data>-zfiles AT '||' INTO TABLE lt_str.
IF lt_str[] IS INITIAL.
ev_html = ev_html && | <tr><td style='font-family:arial;color:black;font-weight:bold;font-size:17px;text-align:center'>附件名称及链接</td>|
&& | <td colspan=4>{ <fs_data>-zfiles }</td></tr>|.
ELSE.
ev_html = ev_html && | <tr><td rowspan={ lines( lt_str[] ) } style='font-family:arial;color:black;font-weight:bold;font-size:17px;text-align:center'>附件名称及链接</td>|.
LOOP AT lt_str ASSIGNING FIELD-SYMBOL(<fs_str>).
split <fs_str>-str at '|' into data(lstr1) DATA(lstr2).
AT FIRST.
ev_html = ev_html
&& | <td colspan=4><a href="{ lstr2 }" target="_blank" rel="noopener noreferrer">{ lstr1 }</a></td></tr>|.
CONTINUE.
ENDAT.
ev_html = ev_html
&& | <tr><td colspan=4><a href="{ lstr2 }" target="_blank" rel="noopener noreferrer">{ lstr1 }</a></td></tr>|.
ENDLOOP.
ENDIF.
ENDIF.
ev_html = ev_html && | </table>|.
ENDAT.
SHIFT <fs_data>-posnr LEFT DELETING LEADING '0'.
ev_html = ev_html
&& |<table border=1 width=800 style='border-collapse:collapse;table-layout:fixed;'>|
&& | <tr style='font-family:arial;color:black;font-weight:bold;font-size:16px;text-align:center'>|
&& | <td rowspan=5 width=60>{ <fs_data>-posnr }</td><td width=130>是否按单</td><td width=115>物料号</td><td width=160>物料描述</td>|
&& | <td width=70>订单数量</td><td width=70>销售单位</td><td width=70>生产工厂</td><td width=120>供应链转储订单</td></tr>|
&& | <tr style='text-align:center'><td>{ <fs_data>-ismto }</td><td>{ <fs_data>-matnr ALPHA = out }</td><td>{ <fs_data>-arktx }</td>|
&& | <td>{ <fs_data>-kwmeng }</td><td>{ <fs_data>-vrkme }</td><td>{ <fs_data>-reswk }</td><td>{ <fs_data>-ebeln }</td></tr>|
&& | <tr><td style='font-family:arial;color:black;font-weight:bold;font-size:16px;text-align:center'>物料长文本</td><td colspan=6>{ <fs_data>-ltext }</td></tr>|
&& | <tr><td style='font-family:arial;color:black;font-weight:bold;font-size:16px;text-align:center'>行项目生产备注</td><td colspan=6>{ <fs_data>-zscbz2 }</td></tr>|
&& | <tr><td style='font-family:arial;color:black;font-weight:bold;font-size:16px;text-align:center'>客户标准号</td><td colspan=6>{ <fs_data>-zkhbzh }</td></tr>|
&& |</table>|.
ENDLOOP.
ev_html = ev_html && |</body></html>|.
ENDFUNCTION.
3.2、显示html
（1）方式一：ABAP对话框显示html（本例使用，查看不用授权）
FORM frm_double_click USING p_row TYPE salv_de_row
p_column TYPE salv_de_column.
DATA: lt_data TYPE TABLE OF zsmm114 WITH HEADER LINE.
READ TABLE gt_vbak_po INTO DATA(ls_wa) INDEX p_row."读当前行
CLEAR: lt_data,lt_data[].
IF p_column EQ 'VBELN'. "按订单查询
LOOP AT gt_vbak_po ASSIGNING FIELD-SYMBOL(<fs_vbak>) WHERE vbeln = ls_wa-vbeln.
lt_data = CORRESPONDING #( <fs_vbak> ).
APPEND lt_data.
CLEAR lt_data.
ENDLOOP.
ELSE. "按订单行查询
lt_data = CORRESPONDING #( ls_wa ).
APPEND lt_data.
CLEAR lt_data.
ENDIF.
CHECK lt_data[] IS NOT INITIAL.
DATA: lv_html_str TYPE string.
CALL FUNCTION 'ZMMFM056H'
IMPORTING
ev_html = lv_html_str
TABLES
it_data = lt_data[].
"lv_html_str = |<!DOCTYPE html><html><head><title>abap show html</title></head><body><p>Hello world </p></body></html>|.
cl_abap_browser=>show_html( html_string = lv_html_str context_menu = 'X' printing = 'X' title = '销售订单生产备注信息').
ENDFORM.
（2）方法二：调用外部浏览器显示html
需要先下载，再访问，保存文件的时候需要授权。
CALL FUNCTION 'GUI_DOWNLOAD'
EXPORTING
FILENAME = 'C:\hello.html'
TABLES
DATA_TAB = T_HTML
EXCEPTIONS
FILE_WRITE_ERROR = 1
NO_BATCH = 2
GUI_REFUSE_FILETRANSFER = 3
INVALID_TYPE = 4
NO_AUTHORITY = 5
UNKNOWN_ERROR = 6
HEADER_NOT_ALLOWED = 7
SEPARATOR_NOT_ALLOWED = 8
FILESIZE_NOT_ALLOWED = 9
HEADER_TOO_LONG = 10
DP_ERROR_CREATE = 11
DP_ERROR_SEND = 12
DP_ERROR_WRITE = 13
UNKNOWN_DP_ERROR = 14
ACCESS_DENIED = 15
DP_OUT_OF_MEMORY = 16
DISK_FULL = 17
DP_TIMEOUT = 18
FILE_NOT_FOUND = 19
DATAPROVIDER_EXCEPTION = 20
CONTROL_FLUSH_ERROR = 21
OTHERS = 22 .
IF SY -SUBRC <> 0 .
MESSAGE ID SY -MSGID TYPE SY -MSGTY NUMBER SY -MSGNO
WITH SY -MSGV1 SY -MSGV2 SY -MSGV3 SY -MSGV4 .
ENDIF .
CALL FUNCTION 'GUI_RUN'
EXPORTING
COMMAND = 'C:\hello.html'
* PARAMETER =
* CD =
* IMPORTING
* RETURNCODE =
3.3、ALV导出Excel
FORM frm_export_xls.
DATA: lt_vbak_po LIKE gt_vbak_po.
CLEAR: lt_vbak_po, lt_vbak_po[].
lt_vbak_po[] = CORRESPONDING #( gt_vbak_po[] ).
LOOP AT lt_vbak_po[] ASSIGNING FIELD-SYMBOL(<fs_lt_po>).
REPLACE ALL OCCURRENCES OF '||' IN <fs_lt_po>-zfiles WITH cl_abap_char_utilities=>cr_lf.
ENDLOOP.
DATA: lo_converter TYPE REF TO zcl_excel_converter.
"创建zcl_excel_converter类
CREATE OBJECT lo_converter.
TRY .
lo_converter->convert(
EXPORTING
io_alv = gr_table
it_table = lt_vbak_po[]
i_row_int = 1
i_column_int = 1
).
CATCH zcx_excel.
ENDTRY.
"选择文件保存路径
TRY.
DATA:filepath TYPE string VALUE 'D:'.
cl_gui_frontend_services=>directory_browse(
EXPORTING
window_title = 'Select path to download EXCEL-file'
initial_folder = filepath
CHANGING
selected_folder = filepath
EXCEPTIONS
cntl_error = 1
error_no_gui = 2
not_supported_by_gui = 3
OTHERS = 4
).
ENDTRY.
CHECK sy-subrc IS INITIAL AND filepath IS NOT INITIAL.
"调用write_file方法导出excel
lo_converter->write_file( i_path = |{ filepath && '\' }销售订单生产备注-{ sy-datum }.xlsx| ).
ENDFORM.
4、小甜点
以下函数拿来即可用，支持单个或多个长文本内容的显示
FUNCTION zbcfm003.
*"----------------------------------------------------------------------
*"*"本地接口：
*" IMPORTING
*" REFERENCE(IV_TITLE) TYPE CHAR255
*" REFERENCE(IV_CONTEXT_MENU) TYPE XFELD OPTIONAL
*" REFERENCE(IV_PRINTING) TYPE XFELD OPTIONAL
*" TABLES
*" IT_DATA STRUCTURE ZSBC009 OPTIONAL
*"----------------------------------------------------------------------
DATA lv_html_str TYPE string.
lv_html_str = |<!DOCTYPE html><html><head><meta charset="utf-8">|
&& |<title>{ iv_title }</title></head><body>|.
IF it_data[] IS INITIAL.
lv_html_str = |{ lv_html_str }<p>{ COND #( WHEN sy-langu EQ 1 THEN '空空如也' ELSE 'Nothing to display') }</p>|.
ELSE.
LOOP AT it_data[] ASSIGNING FIELD-SYMBOL(<fs_data>).
IF <fs_data> IS INITIAL.
CONTINUE.
ENDIF.
lv_html_str = |{ lv_html_str }{ COND #( WHEN <fs_data>-h1 IS NOT INITIAL THEN '<h1>' && <fs_data>-h1 && '</h1>' ELSE '' ) }|.
lv_html_str = |{ lv_html_str }{ COND #( WHEN <fs_data>-h2 IS NOT INITIAL THEN '<h2>' && <fs_data>-h2 && '</h2>' ELSE '' ) }|.
lv_html_str = |{ lv_html_str }{ COND #( WHEN <fs_data>-h3 IS NOT INITIAL THEN '<h3>' && <fs_data>-h3 && '</h3>' ELSE '' ) }|.
lv_html_str = |{ lv_html_str }{ COND #( WHEN <fs_data>-h4 IS NOT INITIAL THEN '<h4>' && <fs_data>-h4 && '</h4>' ELSE '' ) }|.
lv_html_str = |{ lv_html_str }{ COND #( WHEN <fs_data>-h5 IS NOT INITIAL THEN '<h5>' && <fs_data>-h5 && '</h5>' ELSE '' ) }|.
lv_html_str = |{ lv_html_str }{ COND #( WHEN <fs_data>-h6 IS NOT INITIAL THEN '<h6>' && <fs_data>-h6 && '</h6>' ELSE '' ) }|.
lv_html_str = |{ lv_html_str }{ COND #( WHEN <fs_data>-div IS NOT INITIAL THEN '<div>' && <fs_data>-div && '</div>' ELSE '' ) }|.
lv_html_str = |{ lv_html_str }<div> </div>|.
ENDLOOP.
ENDIF.
lv_html_str = |{ lv_html_str }</body></html>|.
cl_abap_browser=>show_html( html_string = lv_html_str
context_menu = iv_context_menu
printing = iv_printing
title = iv_title ).
ENDFUNCTION.
展示效果如下图：
附入参结构
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