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<p>升級tomcat8及更高版本帶來的問題</p> <p>因爲使用get請求，連接中參數攜帶特殊字符，因爲Tomcat的新版本中增長了一個新特性，就是嚴格按照 RFC 3986規範進行訪問</p> <h2><a name="t0"></a>解析，而 RFC 3986規範定義了Url中只容許包含英文字母（a-zA-Z）、數字（0-9）、-_.~4個特殊字符以及全部保留字符</h2> <p>(RFC3986中指定了如下字符爲保留字符：! * ’ ( ) ; : @ & = + $ , / ? # [ ])</p> <p>1.統一的解決辦法使用encodeURIComponent(對請求參數編碼)</p> <p>使用<span style="text-align:justify;">encodeURIComponent會對參數因此參數都編碼，這裏不建議使用encodeURI,由於它不會對「<span style="color:#ff0000;">; / ? : @ & = + $ , #</span></span><span style="color:rgb(79,79,79);text-align:justify;">」幾個</span></p> <p><span style="color:rgb(79,79,79);text-align:justify;">特殊字符編碼。</span></p> <p style="text-align:left;"><span style="text-align:justify;">好比請求參數是：<span style="color:#ff0000;">"{"criteria":{"matchMode":"AND","subCriteriaList":[{"fieldName":"oilNo","targetValue":"1","compareMode":"EQ"}]}}"</span></span></p> <p style="text-align:left;"><span style="text-align:justify;"><span style="color:#000000;">代碼以下：</span></span></p> <p style="text-align:left;"><span style="text-align:justify;"><span style="color:#ff0000;"></span></span></p> <pre onclick="hljs.copyCode(event)"><code class="language-html hljs xml">encodeURIComponent(JSON.stringify((new Query().buildQueryCrit('oilNo', formData.oilNo, 'EQ').queryCrit)));</code><div class="hljs-button" data-title="複製"></div></pre> <br><span style="text-align:justify;">編碼後：</span> <p><span style="color:rgb(196,26,22);font-family:Consolas, 'Lucida Console', 'Courier New', monospace;font-size:12px;">"</span><span style="color:rgb(196,26,22);font-family:Consolas, 'Lucida Console', 'Courier New', monospace;font-size:12px;">%7B%22criteria%22%3A%7B%22matchMode%22%3A%22AND%22%2C%22subCriteriaList%22%3A%5B%7B%22fieldName%22%3A%22oilNo%22%2C%22targetValue%22%3A%221%22%2C%22compareMode%22%3A%22EQ%22%7D%5D%7D%7D"</span></p> <p><span style="font-family:Consolas, 'Lucida Console', 'Courier New', monospace;color:#000000;"><span style="font-size:12px;">在springMVC的Controlelr層能正確接收字符串。</span></span></p> <p><span style="font-family:Consolas, 'Lucida Console', 'Courier New', monospace;color:#000000;"><span style="font-size:12px;"><br></span></span></p> <h2><a name="t1"></a><span style="font-family:Consolas, 'Lucida Console', 'Courier New', monospace;color:#000000;"><span style="font-size:12px;">備註另外一個問題的解決方法：Linux tomcat8，JDK8 啓動卡住半天 後才能正常啓動解決方案</span></span></h2> <p><span style="font-size:12px;color:rgb(0,0,0);font-family:Consolas, 'Lucida Console', 'Courier New', monospace;">將$JAVA_HOME/jre/lib/security/java.security內,將securerandom.source的內容改成file:/dev/./urandom便可</span></p> <p><span style="font-family:Consolas, 'Lucida Console', 'Courier New', monospace;color:#000000;"><span style="font-size:12px;">linux或者部分unix系統提供隨機數設備是/dev/random 和/dev/urandom ，兩個有區別，urandom安全性沒有random高，但random須要時間間隔生成隨機數。</span></span></p> <p><span style="font-family:Consolas, 'Lucida Console', 'Courier New', monospace;color:#000000;"><span style="font-size:12px;">可能在生成隨機數的時候卡住了,致使tomcat啓動不了<br></span></span></p> <p><span style="font-family:Consolas, 'Lucida Console', 'Courier New', monospace;color:#000000;"><span style="font-size:12px;"><br></span></span></p> <p><span style="font-family:Consolas, 'Lucida Console', 'Courier New', monospace;color:#000000;"><span style="font-size:12px;"><br></span></span></p> <p><span style="color:rgb(196,26,22);font-family:Consolas, 'Lucida Console', 'Courier New', monospace;font-size:12px;"><br></span></p> <p><span style="color:rgb(196,26,22);font-family:Consolas, 'Lucida Console', 'Courier New', monospace;font-size:12px;"><br></span></p> <p><span style="color:rgb(196,26,22);font-family:Consolas, 'Lucida Console', 'Courier New', monospace;font-size:12px;"><br></span></p> <p><span style="color:rgb(196,26,22);font-family:Consolas, 'Lucida Console', 'Courier New', monospace;font-size:12px;"><br></span></p> </div>java