{"id":1976,"date":"2023-04-01T10:39:52","date_gmt":"2023-04-01T02:39:52","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1976"},"modified":"2023-04-22T08:30:10","modified_gmt":"2023-04-22T00:30:10","slug":"springboot-filter-request-parameters","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/04\/01\/springboot-filter-request-parameters\/","title":{"rendered":"SpringBoot\u8bbe\u7f6eFilter\u8fc7\u6ee4\u8bf7\u6c42\u53c2\u6570"},"content":{"rendered":"<p>\u5728\u4f7f\u7528Spring Boot\u8fdb\u884c\u9879\u76ee\u5f00\u53d1\u65f6\uff0c\u9047\u5230\u7684\u9700\u6c42\u662f\u9700\u8981\u5bf9\u7528\u6237\u4e0a\u4f20\u7684\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\uff0c\u6bd4\u5982\u53bb\u9664<code>&lt; &#039; ^ %<\/code>\u7b49\u654f\u611f\u5b57\u7b26<\/p>\n<p>\u81ea\u5df1\u5728\u505a\u7684\u65f6\u5019\u60f3\u5230\u4e86\u4e24\u4e2a\u529e\u6cd5\u53bb\u5b9e\u73b0<\/p>\n<p>\uff081\uff09\u5199\u4e00\u4e2a\u8fc7\u6ee4\u65b9\u6cd5\uff0c\u5728\u6709\u6570\u636e\u64cd\u4f5c\u7684\u5730\u65b9\u8c03\u7528\u65b9\u6cd5\u8fdb\u884c\u8fc7\u6ee4\uff0c\u5c06\u8fc7\u6ee4\u4ee5\u540e\u7684\u5b57\u7b26\u4e32\u91cd\u65b0\u8d4b\u503c<\/p>\n<p><!-- more --><\/p>\n<pre><code class=\"language-java\">public static String StringFilterUntil(String str) throws PatternSyntaxException {\n    \/\/ \u6e05\u9664\u6389\u6240\u6709\u7279\u6b8a\u5b57\u7b26\n    String regEx = &quot;[`~!@#$%^&amp;()+=|{}&#039;:&#039;\/\/[\/\/].&lt;&gt;\/~\uff01@#\uffe5%\u2026\u2026&amp;*\uff08\uff09\u2014\u2014+|{}]&quot;;\n    Pattern p = Pattern.compile(regEx);\n    Matcher m = p.matcher(str);\n    return m.replaceAll(&quot;&quot;).trim();\n}<\/code><\/pre>\n<p>\u7136\u540e\u5728\u9700\u8981\u8fdb\u884c\u64cd\u4f5c\u7684\u5730\u65b9\u8c03\u7528\u5373\u53ef\uff0c\u4f46\u662f\u6bcf\u6b21\u90fd\u8c03\u7528\u5c31\u663e\u5f97\u6709\u4e9b\u9ebb\u70e6\u548c\u5c34\u5c2c\u3002\u4e8e\u662f\u5c31\u8fdb\u884c\u5c1d\u8bd5\u7b2c\u4e8c\u4e2a\u529e\u6cd5<\/p>\n<p>\uff082\uff09\u5728request\u5230\u8fbeController\u4e4b\u524d\uff0c\u5bf9\u53c2\u6570\u8fdb\u884c\u8fc7\u6ee4\uff0c\u5c06\u7279\u6b8a\u5b57\u7b26\u8fc7\u6ee4\u6389\u540e\uff0c\u518d\u5c06\u6570\u636e\u5199\u5165request<\/p>\n<p>\u9996\u5148\u662f\u65b0\u5efa\u4e00\u4e2a<code>SensitiveWordsFilter<\/code>\u7c7b\uff0c\u5b9e\u73b0Filter\u63a5\u53e3\uff0c\u91cd\u5199\u5176\u4e2d\u7684\u65b9\u6cd5\uff0c\u5728doFilter\u4e2d\u5b9e\u73b0\u8fc7\u6ee4<\/p>\n<p>\u4f46\u662f\u5728\u5b9e\u9645\u7684\u64cd\u4f5c\u4e2d\u9047\u5230\u4e86\u4e00\u4e9b\u95ee\u9898\u3002\u5728\u4f7f\u7528<code>request.getParameterMap()<\/code>\u5e76\u5bf9\u8fd4\u56de\u503c\u8fdb\u884c\u64cd\u4f5c\u548c\u4fee\u6539\u65f6\u51fa\u73b0\uff1a<\/p>\n<pre><code class=\"language-java\">java.lang.IllegalStateException: No modifications are allowed to a locked ParameterMap<\/code><\/pre>\n<p>\u67e5\u8be2\u76f8\u5173\u8d44\u6599\u540e\u5f97\u77e5\uff0c\u4ee5\u4e0a\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u4e0d\u80fd\u76f4\u63a5\u8fdb\u884c\u64cd\u4f5c\u4e0e\u8d4b\u503c\u3002\u6240\u4ee5\u9700\u8981\u628a\u8fd4\u56de\u503c\u8d4b\u503c\u7ed9\u4e00\u4e2a\u65b0\u7684map\u5373\u53ef\u3002<\/p>\n<pre><code class=\"language-java\">new HashMap(request.getParameterMap());<\/code><\/pre>\n<p>\u5728\u5bf9\u5f97\u5230\u7684\u6570\u636e\u8fdb\u884c\u64cd\u4f5c\u5b8c\u6210\u540e\uff0c\u9700\u8981\u628a\u8fc7\u6ee4\u4ee5\u540e\u7684map\u5199\u5230request\u91cc\u9762\uff0c\u901a\u8fc7\u767e\u5ea6\u548cGoogle\u67e5\u8be2\u8d44\u6599\u4ee5\u540e\uff0c\u627e\u5230\u4e86\u89e3\u51b3\u529e\u6cd5\u3002<\/p>\n<p>\u8981\u628a\u4fee\u6539\u4ee5\u540e\u7684map\u52a0\u5165\u5230request\u4e2d\u9700\u8981\u5b9a\u4e49<code>ParameterRequestWrapper<\/code>\u7ee7\u627f<code>HttpServletRequestWrapper<\/code><\/p>\n<pre><code class=\"language-java\">public class ParameterRequestWrapper extends HttpServletRequestWrapper {\n\n    private Map params;\n\n    public ParameterRequestWrapper(HttpServletRequest request, Map newParams) {\n        super(request);\n        this.params = newParams;\n    }\n\n    public Map getParameterMap() {\n        return params;\n    }\n\n    public Enumeration getParameterNames() {\n        Vector v = new Vector(params.keySet());\n        return v.elements();\n    }\n\n    public String[] getParameterValues(String name) {\n        Object v = params.get(name);\n        if (v == null) {\n            return null;\n        } else if (v instanceof String[]) {\n            return (String[]) v;\n        } else if (v instanceof String) {\n            return new String[] { (String) v };\n        } else {\n            return new String[] { v.toString() };\n        }\n    }\n\n    public String getParameter(String name) {\n        Object v = params.get(name);\n        if (v == null) {\n            return null;\n        } else if (v instanceof String[]) {\n            String[] strArr = (String[]) v;\n            if (strArr.length &gt; 0) {\n                return strArr[0];\n            } else {\n                return null;\n            }\n        } else if (v instanceof String) {\n            return (String) v;\n        } else {\n            return v.toString();\n        }\n    }\n}<\/code><\/pre>\n<p>\u7136\u540e\u5728Filter\u91cc\u9762\u7684\u64cd\u4f5c\u662f\uff1a<\/p>\n<pre><code class=\"language-java\">Map&lt;String, String[]&gt; newParams = new HashMap(request.getParameterMap());\n\nHttpServletRequest request = (HttpServletRequest) req;\nParameterRequestWrapper wrapRequest = new ParameterRequestWrapper(request, newParams);\n\nchain.doFilter(wrapRequest, response);<\/code><\/pre>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u7684\u64cd\u4f5c\u5373\u53ef\u5b9e\u73b0\u4fee\u6539\u8bf7\u6c42\u53c2\u6570<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u4f7f\u7528Spring Boot\u8fdb\u884c\u9879\u76ee\u5f00\u53d1\u65f6\uff0c\u9047\u5230\u7684\u9700\u6c42\u662f\u9700\u8981\u5bf9\u7528\u6237\u4e0a\u4f20\u7684\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\uff0c\u6bd4\u5982\u53bb\u9664&lt; &#038;#0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[497],"class_list":["post-1976","post","type-post","status-publish","format-standard","hentry","category-spring-boot","tag-filter"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1976","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1976"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1976\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1976"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1976"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}