{"id":4708,"date":"2021-12-21T16:50:16","date_gmt":"2021-12-21T08:50:16","guid":{"rendered":"http:\/\/123.57.164.21\/?p=4708"},"modified":"2021-12-21T16:50:16","modified_gmt":"2021-12-21T08:50:16","slug":"stringescapeutils%e7%9a%84%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=4708","title":{"rendered":"StringEscapeUtils\u7684\u4f7f\u7528"},"content":{"rendered":"\n<p>apache\u5de5\u5177\u5305common-lang\u4e2d\u6709\u4e00\u4e2a\u5f88\u6709\u7528\u7684\u5904\u7406\u5b57\u7b26\u4e32\u7684\u5de5\u5177\u7c7b\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fStringEscapeUtils,\u8fd9\u4e2a\u5de5\u5177\u7c7b\u662f\u57282.3\u7248\u672c\u4ee5\u4e0a\u52a0\u4e0a\u7684\u53bb\u7684\uff0c\u5229\u7528\u5b83\u80fd\u5f88\u65b9\u4fbf\u7684\u8fdb\u884chtml,xml,Java\u7b49\u7684\u8f6c\u4e49\u4e0e\u53cd\u8f6c\u4e49\uff0c\u800c\u4e14\u8fd8\u80fd\u5bf9\u5173\u952e\u5b57\u7b26\u4e32\u8fdb\u884c\u5904\u7406\u9884\u9632SQL\u6ce8\u5165\u3002<\/p>\n\n\n\n<ul><li><strong>\u6dfb\u52a0\u4f9d\u8d56<\/strong><\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">&lt;dependency>\n    &lt;groupId>commons-lang&lt;\/groupId>\n    &lt;artifactId>commons-lang&lt;\/artifactId>\n    &lt;version>2.6&lt;\/version>\n&lt;\/dependency><\/pre>\n\n\n\n<ul><li><strong>html\u811a\u672c<\/strong><\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ escapeHtml\u8f6c\u4e49html\u811a\u672c\nSystem.out.println(StringEscapeUtils.escapeHtml(\"&lt;a>abc&lt;\/a>\"));\n\/\/ unescapeHtml\u53cd\u8f6c\u4e49html\u811a\u672c\nSystem.out.println(StringEscapeUtils.unescapeHtml(\"&amp;lt;a&amp;gt;abc&amp;lt;\/a&amp;gt;\"));\n\n\u8f93\u51fa\n&amp;lt;a&amp;gt;abc&amp;lt;\/a&amp;gt;\n&lt;a>abc&lt;\/a>\n<\/pre>\n\n\n\n<ul><li><strong>js\u811a\u672c<\/strong><\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ escapeJavaScript\u8f6c\u4e49js\u811a\u672c\nSystem.out.println(StringEscapeUtils.escapeJavaScript(\"&lt;script>alert('123')&lt;script>\"));\n\/\/ unescapeJavaScript\u53cd\u8f6c\u4e49js\u811a\u672c\nSystem.out.println(StringEscapeUtils.unescapeJavaScript(\"&lt;script>alert(\\'123\\')&lt;script>\"));\n\n\u8f93\u51fa\n&lt;script>alert(\\'123\\')&lt;script>\n&lt;script>alert('123')&lt;script>\n<\/pre>\n\n\n\n<ul><li><strong>\u5b57\u7b26\u4e32Unicode\u3000<\/strong><\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ escapeJava\u8f6c\u4e49\u6210Unicode\u7f16\u7801\nSystem.out.println(StringEscapeUtils.escapeJava(\"\u4f60\u597d\"));\n\/\/ unescapeJava\u53cd\u8f6c\u4e49\u6210Unicode\u7f16\u7801\nSystem.out.println(StringEscapeUtils.unescapeJava(\"\\u4F60\\u597D\"));\n\n\u8f93\u51fa\n\\u4F60\\u597D\n\u4f60\u597d\n<\/pre>\n\n\n\n<ul><li><strong>xml<\/strong><\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ escapeXML\u8f6c\u4e49XML\nSystem.out.println(StringEscapeUtils.escapeXml(\"&lt;name>\u8d1d\u8d1d&lt;\/name>\"));\n\/\/ unescapeXML\u53cd\u8f6c\u4e49XML\nSystem.out.println(StringEscapeUtils.unescapeXml(\"&amp;lt;name&amp;gt;&amp;#36125;&amp;#36125;&amp;lt;\/name&amp;gt;\"));\n\n\u8f93\u51fa\n\n&amp;lt;name&amp;gt;&amp;#36125;&amp;#36125;&amp;lt;\/name&amp;gt;\n&lt;name>\u8d1d\u8d1d&lt;\/name>\n<\/pre>\n\n\n\n<ul><li><strong>sql<\/strong><\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\n\/\/ escapeSql sql\u8f6c\u4e49\uff0c\u9632\u6b62sql\u6ce8\u5165\u653b\u51fb\nStringBuffer sql = new StringBuffer(\"select * from users where 1=1 \");\nString keyWord=\"aaa' or '1=1\";\nif(!keyWord.isEmpty()){\n      sql.append(\" and username like '%\" + StringEscapeUtils.escapeSql(keyWord) + \"%'\");\n}\nSystem.out.println(sql);\n\n\u8f93\u51fa\n\nselect * from users where 1=1  and username like '%aaa'' or ''1=1%'\n\n\u4e0d\u8fdb\u884c\u8f6c\u4e49\u7684\uff0c\u4f1a\u67e5\u51fa\u5168\u90e8\u7528\u6237\n\nselect * from users where 1=1  and username like '%aaa' or '1=1%' <\/pre>\n\n\n\n<ul><li><strong>json\u4e32\u53cd\u8f6c\u4e49\uff08\u6d88\u9664\u53cd\u659c\u6760\uff09<\/strong><\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">JSon\u4e32\u5728\u88ab\u4e32\u884c\u5316\u540e\u4fdd\u5b58\u5728\u6587\u4ef6\u4e2d\uff0c\u8bfb\u53d6\u5b57\u7b26\u4e32\u65f6\uff0c\u662f\u4e0d\u80fd\u76f4\u63a5\u62ff\u6765\u7528JSON.parse()\u89e3\u6790\u4e3aJSON  \u5bf9\u8c61\u7684\u3002\u56e0\u4e3a\u5b83\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u4e0d\u662f\u4e00\u4e2a\u5408\u6cd5\u7684JSON\u5bf9\u8c61\u683c\u5f0f\u3002\u4f8b\u5982\u4e0b\u9762\u7684JSON\u4e32\u4fdd\u5b58\u5728\u6587\u4ef6\u4e2d\uff0c\u8bfb\u51fa\u6765\u4e0d\u80fd\u76f4\u63a5\u89e3\u6790\uff1a\n\n\u201c{\\\"resourceId\\\":\\\"dfead70e4ec5c11e43514000ced0cdcaf\\\",\\\"properties\\\":{\\\"process_id\\\":\\\"process4\\\",\\\"name\\\":\\\"\\\",\\\"documentation\\\":\\\"\\\",\\\"processformtemplate\\\":\\\"\\\"}}\"\n\n\u8fd9\u4e2a\u4e32\u5982\u679c\u51fa\u73b0\u5728\u4ee3\u7801\u4e2d\u662f\u6ca1\u6709\u95ee\u9898\u7684\uff0c\u56e0\u4e3a\u53cd\u659c\u6760\u5c31\u8868\u793a\u8f6c\u4e49\uff0c\u4f46\u5982\u679c\u4ece\u6587\u672c\u6587\u4ef6\u4e2d\u76f4\u63a5\u8bfb\u51fa\u6765\u5c31\u662f\u8fd9\u4e2a\u6837\u5b50\uff0c\u5219\u4e0d\u80fd\u76f4\u63a5\u7528JSON.parse()\u8fdb\u884c\u89e3\u6790\uff0c\u9700\u8981\u53cd\u4e32\u884c\u5316\uff0c\u6d88\u9664\u6389\u53cd\u659c\u6760\u3002\u6709\u4e9bprogrammer\u559c\u6b22\u81ea\u5df1\u5199\u4e00\u4e2a\u5de5\u5177\u7c7b\u6765\u505a\u8fd9\u6837\u7684\u4e8b\u60c5\uff0c\u4f46\u5df2\u7ecf\u6709\u65b9\u4fbf\u5feb\u6377\u7684\u5de5\u5177\u7c7b\u53ef\u4ee5\u6765\u505a\u8fd9\u4ef6\u4e8b\u60c5\uff0c\u6bcb\u9700\u6211\u4eec\u91cd\u590d\u53d1\u660e\u8f66\u8f6e\u5b50\u3002\n\n\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528Apache \u7684 common.lang\u5de5\u5177\u5305(\u4f7f\u7528\u5de5\u5177\u7c7b\uff1aorg.apache.commons.lang.StringEscapeUtils)\u3002\u4f8b\u5b50\u5982\u4e0b\uff1a\n\npublic void test(){\n\t\tString str1 = \"{\\\"resourceId\\\":\\\"dfead70e4ec5c11e43514000ced0cdcaf\\\",\\\"properties\\\":{\\\"process_id\\\":\\\"process4\\\",\\\"name\\\":\\\"\\\",\\\"documentation\\\":\\\"\\\",\\\"processformtemplate\\\":\\\"\\\"}}\";\n\t\tString tmp = StringEscapeUtils.unescapeJavaScript(str1);\n\t\tSystem.out.println(\"tmp:\" + tmp);\n\t}\n\n\u8f93\u51fa\uff1a\ntmp:{\"resourceId\":\"51ad70e41c5c11e88514000c290cdcfa\",\"properties\":{\"process_id\":\"process4\",\"name\":\"\",\"documentation\":\"\",\"processformtemplate\":\"\"}}\n\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>apache\u5de5\u5177\u5305common-lang\u4e2d\u6709\u4e00\u4e2a\u5f88\u6709\u7528\u7684\u5904\u7406\u5b57\u7b26\u4e32\u7684\u5de5\u5177\u7c7b\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662fStringEscap [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/4708"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4708"}],"version-history":[{"count":4,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/4708\/revisions"}],"predecessor-version":[{"id":4712,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/4708\/revisions\/4712"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}