我无法解码以基本64格式提供的XML,字符串变量(lv_string
)显示不可读的东西。
示例:
在的
这是代码:
Data: lt_content Type standard table of x255,
lv_xstring Type xstring,
lv_string Type string,
encod Type Abap_encoding Value 4110.
Select Single xml_dte into @Data(xml_b64)
From zmmvf_edocdet
Where numinterno = '0000000012'.
IF Sy-subrc Eq 0.
Call function 'SCMS_BASE64_DECODE_STR'
Exporting
Input = xml_b64
Importing
Output = lv_xstring
Exceptions
Failed = 1
Others = 2.
If Sy-subrc Eq 0.
Data(lv_len) = xstrlen( lv_xstring ).
Call function 'SCMS_XSTRING_TO_BINARY'
Exporting
buffer = lv_xstring
Importing
output_length = lv_len
Tables
binary_tab = lt_content[].
Call function 'SCMS_BINARY_TO_STRING'
Exporting
input_length = lv_len
* encoding = encod
Importing
text_buffer = lv_string
Tables
binary_tab = lt_content[]
Exceptions
failed = 1
Others = 2.
ENDIF.
ENDIF.
我过去也有这个问题。您可以使用以下
data:
lv_base64 type string,
lv_xstring type xstring,
lv_output type string.
* example base64 string
lv_base64 = 'PGh0bWw+PGhlYWQ+PHRpdGxlPlRpdGxlPC90aXRsZT48L2hlYWQ+PGJvZHk+PHA+SGVsbG8gV29ybGQ8L3A+PC9ib2R5PjwvaHRtbD4='.
* convert base64 to binary (xstring)
call function 'SCMS_BASE64_DECODE_STR'
exporting
input = lv_base64
importing
output = lv_xstring
exceptions
failed = 1
others = 2.
* use codepage conversion to convert xstring to string (UTF-8)
* catch possible conversion errors
try.
lv_output = cl_abap_codepage=>convert_from( source = lv_xstring ).
catch cx_parameter_invalid_range .
catch cx_sy_codepage_converter_init .
catch cx_sy_conversion_codepage .
catch cx_parameter_invalid_type .
endtry.
write lv_output.
结果是以下输出
<html><head><title>Title</title></head><body><p>Hello World</p></body></html>
您可以使用其他参数控制转换,例如:
如果您更喜欢有不同的codepage
如果您想用特殊的char
替换不可见字符如果您想忽略转换错误
lv_output = cl_abap_codepage=>convert_from(
source = lv_xstring
codepage = <your favourite codepage here>
replacement = <conversion char for not convertible chars>
ignore_cerr = <pass 'X' to ignore conversion errors>
).
一个简短的解决方案,如果我们假设base64字符串在 UTF-8
编码中包含XML,则使用CL_HTTP_UTILITY
类的方法DECODE_BASE64
:
lv_string = cl_http_utility=>if_http_utility~decode_base64( xml_b64 ).
最小,完整和可验证的示例:
(请允许我重复使用@manuel_b的好例子)
DATA(xml_b64) = `PGh0bWw+PGhlYWQ+PHRpdGxlPlRpdGxlPC90aXRsZT48L2hlYWQ+`
&& `PGJvZHk+PHA+SGVsbG8gV29ybGQ8L3A+PC9ib2R5PjwvaHRtbD4=`.
DATA(lv_string) = cl_http_utility=>if_http_utility~decode_base64( xml_b64 ).
ASSERT lv_string = `<html><head><title>Title</title></head><body><p>Hello World</p></body></html>`.