小心灵学院RestTemplate/httpclient请求：请求参数中的特殊字符处理
特殊url：
url中有：SuperPNR_ID%3D202006151522247812 （%3D）
url中有：|（竖线）
http:\/\/119.254.234.92:9280\/easypay\/mobilepay.servlet?OrderAmount=1090&AppType=B2C&BankId=TENPAYGW_MINIPROGRAM&BillNo=2020061500011970&Ext1=10.221.150.211&Ext2=&Lan=CN&Msg=SuperPNR_ID%3D202006151522247812&OrderCurtype=CNY&OrderNo=202006151522389979&OrderType=1|0|&OrgId=XZAIRB2C&OrderDate=20200615&OrderTime=152228&ordername=Xizang+Airlines+e-ticket&Orderinfo=&usrid=o_57z5FJx1rlTpMSzsgsdeiEvKxc&username=&gateid=TENPAYGW_MINIPROGRAM&Version=1.0&ReturnId=id_pay_1000&SIGNATURE=f16fa3e8a299c44ebe41a0c3ea678bf6
请注意url中有%3D，还有|中竖线。
RestTemplate
在使用restTemplate请求时，会对%3D进行转义，
通过UriComponentsBuilder创建URI对象，这样RestTemplate不会自动进行urlencode
|
1
2
3
4
5
6
|
// 通过UriComponentsBuilder创建URI对象，这样RestTemplate不会自动进行urlencodeUriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromHttpUrl(requestUrl);或者UriComponentsBuilder uriComponentsBuilder = UriComponentsBuilder.fromUriString(requestUrl);URI uri = uriComponentsBuilder.build(true).toUri(); |
但同时存在另一个问题，参数中有“|”，竖线，请求失败，直接报错：
|
1
|
java.lang.IllegalArgumentException: Invalid uri 'http://xxxxxx' : Invalid query 异常通过URLEncoder来解决。 |
这是需要对含有“|”竖线的，参数进行单独转码:
|
1
|
URLEncoder.encode("|","utf-8"); |
HttpClient
一样的情况，碰到参数“|”，也是会报错（虽然%3D不会被转义了）。
我们需要些个类来处理url中的参数，对”|”,进行转码
|
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
|
public class UrlUtils { public static class UrlEntity { /** * 基础url */ public String baseUrl; /** * url参数 */ public Map<String, String> params; } /** * 解析url * * @param url * @return */ public static UrlEntity parse(String url) { UrlEntity entity = new UrlEntity(); if (url == null) { return entity; } url = url.trim(); if (url.equals("")) { return entity; } String[] urlParts = url.split("\\?"); entity.baseUrl = urlParts[0]; //没有参数 if (urlParts.length == 1) { return entity; } //有参数 String[] params = urlParts[1].split("&"); entity.params = new HashMap(); for (String param : params) { String[] keyValue = param.split("="); System.out.println(JSON.toJSONString(keyValue)); if(keyValue.length==1){ entity.params.put(keyValue[0], ""); continue; } if(keyValue[1].contains("|")){ try { keyValue[1] = URLEncoder.encode(keyValue[1],"utf-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } } entity.params.put(keyValue[0], keyValue[1]); } return entity; } public static String getUrl(String url){ UrlEntity params = parse(url); String baseUrl = params.baseUrl; StringBuffer strtTotalURL = new StringBuffer(); if(params.params!=null){ for (Map.Entry<String, String> m:params.params.entrySet()){ String temp = null; if(m.getValue().contains("|")){ try { temp = m.getKey() + "=" + URLEncoder.encode(m.getValue(),"utf-8") + "&"; } catch (UnsupportedEncodingException e) { e.printStackTrace(); } }else{ temp = m.getKey() + "=" + m.getValue() + "&"; } strtTotalURL.append(temp); } } return baseUrl + "?" + strtTotalURL.toString(); } public void main(String[] args){ String url = "http:\\/\\/119.254.234.92:9280\\/easypay\\/mobilepay.servlet?OrderAmount=1090&AppType=B2C&BankId=TENPAYGW_MINIPROGRAM&BillNo=2020061500011970&Ext1=10.221.150.211&Ext2=&Lan=CN&Msg=SuperPNR_ID%3D202006151522247812&OrderCurtype=CNY&OrderNo=202006151522389979&OrderType=1|0|&OrgId=XZAIRB2C&OrderDate=20200615&OrderTime=152228&ordername=Xizang+Airlines+e-ticket&Orderinfo=&usrid=o_57z5FJx1rlTpMSzsgsdeiEvKxc&username=&gateid=TENPAYGW_MINIPROGRAM&Version=1.0&ReturnId=id_pay_1000&SIGNATURE=f16fa3e8a299c44ebe41a0c3ea678bf6"; System.out.println(getUrl(url)); |
