Webservice—SOAP message character escape

WebService special character escape

　　When soap messages request Webservice, they often encounter special characters and cause interface errors; in this case, escaping is required;

　　 Common escape characters are as follows:

&	&	with
'	'	apostrophe
"	"	Double quotes
>	>	Greater than
&lt;	<	Less than sign

 

　　If the escaped data is processed on the front-end such as js, the symbols before the escape will be displayed normally, and no further processing is required;

https://www.w3cschool.cn/oraclejc/oraclejc-ruyk2r6p.html

Oracle processing method:

CREATE OR REPLACE Function ZLXA_TransferResponse
(
resText In Varchar2
)
  Return Varchar2 As
  --作者： 王大聖
  --时间：2021-01-22
  --功能：调用WebService后存在大量的&amp;  & 和&apos; ' 单引号&quot; " 双引号&gt;  >  大于号&lt; < 小于号
  --实现:  转义

  l_returnXML Varchar2(32767) := '';

  v_AT   Varchar2(2);
Begin

  If resText Is Null Or Length(resText) <=0 Then
    Return '';
  End If;

  v_AT := chr(38);

  l_returnXML := Replace(resText, v_AT || 'amp;', v_AT); --&amp; 为 &
  l_returnXML := Replace(l_returnXML, v_AT || 'apos;', Chr(39)); --&apos; 为 '
  l_returnXML := Replace(l_returnXML, v_AT || 'quot;', Chr(34)); --&quot; 为 "
  l_returnXML := Replace(l_returnXML, v_AT || 'gt;', Chr(62)); --&gt; 为 >
  l_returnXML := Replace(l_returnXML, v_AT || 'lt;', Chr(60)); --&lt; 为 <

  Return l_returnXML;
Exception
  When Others Then
    Return resText;
End;

/*Create Public Synonym ZLXA_TRANSFERRESPONSE For ZLHIS.ZLXA_TRANSFERRESPONSE;
 Grant Execute On ZLXA_TRANSFERRESPONSE To Public; */

Related Oracle function introduction: Chr function

The Oracle Chr() function can return characters according to the numeric code, and its function is opposite to the ASCII function.

Apply to

The CHR() function can be used in the following versions of Oracle:

Oracle 12c、Oracle 11g、Oracle 10g、Oracle 9i

CHR() has a corresponding function ASCII(), which can achieve the opposite effect.
ASCII() - convert characters to ASCII code
Syntax
ASCII (single_character)
example
select ASCII('A') from dual; - return 65

 

ASCII table

 

Dec	Hex	Oct	Char	Description
0	0	000		null
1	1	001		start of heading
2	2	002		start of text
3	3	003		end of text
4	4	004		end of transmission
5	5	005		enquiry
6	6	006		acknowledge
7	7	007		bell
8	8	010		backspace
9	9	011		horizontal tab
10	A	012		new line
11	B	013		vertical tab
12	C	014		new page
13	D	015		carriage return
14	E	016		shift out
15	F	017		shift in
16	10	020		data link escape
17	11	021		device control 1
18	12	022		device control 2
19	13	023		device control 3
20	14	024		device control 4
21	15	025		negative acknowledge
22	16	026		synchronous idle
23	17	027		end of trans. block
24	18	030		cancel
25	19	031		end of medium
26	1A	032		substitute
27	1B	033		escape
28	1C	034		file separator
29	1D	035		group separator
30	1E	036		record separator
31	1F	037		unit separator
32	20	040		space
33	21	041	!
34	22	042	"
35	23	043	#
36	24	044	$
37	25	045	%
38	26	046	&
39	27	047	'
40	28	050	(
41	29	051	)
42	2A	052	*
43	2B	053	+
44	2C	054	,
45	2D	055	-
46	2E	056	.
47	2F	057	/
48	30	060	0
49	31	061	1
50	32	062	2
51	33	063	3
52	34	064	4
53	35	065	5
54	36	066	6
55	37	067	7
56	38	070	8
57	39	071	9
58	3A	072	:
59	3B	073	;
60	3C	074	<
61	3D	075	=
62	3e	076	>
63	3F	077	?
64	40	100	@
65	41	101	A
66	42	102	B
67	43	103	C
68	44	104	D
69	45	105	E
70	46	106	F
71	47	107	G
72	48	110	H
73	49	111	I
74	4A	112	J
75	4B	113	K
76	4C	114	L
77	4D	115	M
78	4E	116	N
79	4F	117	O
80	50	120	P
81	51	121	Q
82	52	122	R
83	53	123	S
84	54	124	T
85	55	125	U
86	56	126	V
87	57	127	W
88	58	130	X
89	59	131	AND
90	5a	132	WITH
91	5B	133	[
92	5C	134	\
93	5D	135	]
94	5e	136	^
95	5F	137	_
96	60	140	`
97	61	141	a
98	62	142	b
99	63	143	c
100	64	144	d
101	65	145	e
102	66	146	f
103	67	147	g
104	68	150	h
105	69	151	i
106	6A	152	j
107	6B	153	k
108	6C	154	l
109	6D	155	m
110	6E	156	n
111	6F	157	o
112	70	160	p
113	71	161	q
114	72	162	r
115	73	163	s
116	74	164	t
117	75	165	u
118	76	166	v
119	77	167	w
120	78	170	x
121	79	171	y
122	7A	172	z
123	7B	173	{
124	7C	174	|
125	7D	175	}
126	7E	176	~
127	7F	177	DEL