html加水印及禁右键
遇到的一个需求，记录一下
js加水印(网上找的)
function watermark(settings) {
//默认设置
var defaultSettings = {
watermark_txt:"text",
watermark_x:1,//水印起始位置x轴坐标
watermark_y:1,//水印起始位置Y轴坐标 window.body.clientHeight/2
watermark_rows:20,//水印行数
watermark_cols:20,//水印列数
watermark_x_space:50,//水印x轴间隔
watermark_y_space:50,//水印y轴间隔
watermark_color:'#000000',//水印字体颜色
watermark_alpha:0.2,//水印透明度
watermark_fontsize:'120px',//水印字体大小
watermark_font:'宋体',//水印字体
watermark_width:window.innerWidth-200,//水印宽度
watermark_height:450,//水印长度
watermark_angle:25//水印倾斜度数
};
if (arguments.length === 1 && typeof arguments[0] === "object") {
var src = arguments[0] || {};
for (key in src) {
if (src[key] && defaultSettings[key] && src[key] === defaultSettings[key]) continue;
else if (src[key]) defaultSettings[key] = src[key];
}
}
var oTemp = document.createDocumentFragment();
//获取页面最大宽度
var page_width = Math.max(document.body.scrollWidth, document.body.clientWidth);
var cutWidth = page_width * 0.0150;
var page_width = page_width - cutWidth;
//获取页面最大高度
var page_height = Math.max(document.body.scrollHeight, document.body.clientHeight) + 450;
page_height = Math.max(page_height, window.innerHeight - 30);
//如果将水印列数设置为0，或水印列数设置过大，超过页面最大宽度，则重新计算水印列数和水印x轴间隔
if (defaultSettings.watermark_cols == 0 || (parseInt(defaultSettings.watermark_x + defaultSettings.watermark_width * defaultSettings.watermark_cols + defaultSettings.watermark_x_space * (defaultSettings.watermark_cols - 1)) > page_width)) {
defaultSettings.watermark_cols = parseInt((page_width - defaultSettings.watermark_x + defaultSettings.watermark_x_space) / (defaultSettings.watermark_width + defaultSettings.watermark_x_space));
defaultSettings.watermark_x_space = parseInt((page_width - defaultSettings.watermark_x - defaultSettings.watermark_width * defaultSettings.watermark_cols) / (defaultSettings.watermark_cols - 1));
}
//如果将水印行数设置为0，或水印行数设置过大，超过页面最大长度，则重新计算水印行数和水印y轴间隔
if (defaultSettings.watermark_rows == 0 || (parseInt(defaultSettings.watermark_y + defaultSettings.watermark_height * defaultSettings.watermark_rows + defaultSettings.watermark_y_space * (defaultSettings.watermark_rows - 1)) > page_height)) {
defaultSettings.watermark_rows = parseInt((defaultSettings.watermark_y_space + page_height - defaultSettings.watermark_y) / (defaultSettings.watermark_height + defaultSettings.watermark_y_space));
defaultSettings.watermark_y_space = parseInt(((page_height - defaultSettings.watermark_y) - defaultSettings.watermark_height * defaultSettings.watermark_rows) / (defaultSettings.watermark_rows - 1));
}
var x;
var y;
for (var i = 0; i < defaultSettings.watermark_rows; i++) {
y = defaultSettings.watermark_y + (defaultSettings.watermark_y_space + defaultSettings.watermark_height) * i;
for (var j = 0; j < defaultSettings.watermark_cols; j++) {
x = defaultSettings.watermark_x + (defaultSettings.watermark_width + defaultSettings.watermark_x_space) * j;
var mask_div = document.createElement('div');
mask_div.id = 'mask_div' + i + j;
mask_div.className = 'mask_div';
mask_div.appendChild(document.createTextNode(defaultSettings.watermark_txt));
//设置水印div倾斜显示
mask_div.style.webkitTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
mask_div.style.MozTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
mask_div.style.msTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
mask_div.style.OTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
mask_div.style.transform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
mask_div.style.visibility = "";
mask_div.style.position = "absolute";
mask_div.style.left = x + 'px';
mask_div.style.top = y + 'px';
mask_div.style.overflow = "hidden";
mask_div.style.zIndex = "9999";
//让水印不遮挡页面的点击事件
mask_div.style.pointerEvents = 'none';
mask_div.style.opacity = defaultSettings.watermark_alpha;
mask_div.style.fontSize = defaultSettings.watermark_fontsize;
mask_div.style.fontFamily = defaultSettings.watermark_font;
mask_div.style.color = defaultSettings.watermark_color;
mask_div.style.textAlign = "center";
mask_div.style.width = defaultSettings.watermark_width + 'px';
mask_div.style.height = defaultSettings.watermark_height + 'px';
mask_div.style.display = "block";
oTemp.appendChild(mask_div);
};
};
document.body.appendChild(oTemp);
}
js禁右键(网上找的)
document.oncontextmenu = function(){return false}
java
import java.io.*;
import java.util.ArrayList;
import java.util.List;
public class ExcelFileIO {
/**
* 加水印及禁右键
* @param folder :文件夹地址
* @param text :水印内容
*/
public static void addWaterMark(String folder,String text){
try {
List<String> fileList = new ArrayList<String>();
getFilesList(new File(folder),fileList);
for (String url:fileList){
fileWatermarkIO(url,text);
fileForbiddenIO(url);
}
}catch (Exception e){
e.printStackTrace();
}
}
/**
* 禁右键
* @param folder 文件夹地址
*/
public static void addForbidden(String folder){
try {
List<String> fileList = new ArrayList<String>();
getFilesList(new File(folder),fileList);
for (String url:fileList){
fileForbiddenIO(url);
}
}catch (Exception e){
e.printStackTrace();
}
}
//读
public static String fileInput(String url) {
try {
FileInputStream fis = new FileInputStream(url);
BufferedInputStream bis = new BufferedInputStream(fis);
String content = null;
//字符缓冲区
byte[] buffer = new byte[10240];
int flag = 0;
while ((flag = bis.read(buffer)) != -1) {
content += new String(buffer, 0, flag);
}
//关闭流
bis.close();
return content;
} catch (
Exception e) {
e.printStackTrace();
}
return "";
}
//写
public static Boolean fileOutput(String url, String context){
Boolean result = false;
try {
FileOutputStream fos=new FileOutputStream(url);
BufferedOutputStream bos=new BufferedOutputStream(fos);
String content=context;
bos.write(content.getBytes(),0,content.getBytes().length);
bos.flush();
bos.close();
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
//加水印
public static Boolean fileWatermarkIO(String fileUrl, String waterMarkText) throws FileNotFoundException, UnsupportedEncodingException {
//读出内容
String textHtml = fileInput(fileUrl);
//水印的js
String context ="\n<script type=\"text/javascript\">\n" +
"window.onload=function(){\n" +
"var defaultSettings = {\n" +
" watermark_txt:\"" + waterMarkText + "\",\n" +
"\t\twatermark_x:(100),\n" +
"\t\twatermark_y:(window.innerHeight/2-60),\n" +
"\t\twatermark_rows:1,\n" +
"\t\twatermark_cols:1,\n" +
"\t\twatermark_x_space:50,\n" +
"\t\twatermark_y_space:50,\n" +
"\t\twatermark_color:'#000000',\n" +
"\t\twatermark_alpha:0.2,\n" +
"\t\twatermark_fontsize:'120px',\n" +
"\t\twatermark_font:'宋体',\n" +
"\t\twatermark_width:window.innerWidth-200,\n" +
"\t\twatermark_height:450,\n" +
"\t\twatermark_angle:25\n" +
" };\n" +
" if (arguments.length === 1 && typeof arguments[0] === \"object\") {\n" +
" var src = arguments[0] || {};\n" +
" for (key in src) {\n" +
" if (src[key] && defaultSettings[key] && src[key] === defaultSettings[key]) continue;\n" +
" else if (src[key]) defaultSettings[key] = src[key];\n" +
" }\n" +
" }\n" +
" var oTemp = document.createDocumentFragment();\n" +
" var page_width = Math.max(document.body.scrollWidth, document.body.clientWidth);\n" +
" var cutWidth = page_width * 0.0150;\n" +
" var page_width = page_width - cutWidth;\n" +
" var page_height = Math.max(document.body.scrollHeight, document.body.clientHeight) + 450;\n" +
" page_height = Math.max(page_height, window.innerHeight - 30);\n" +
" var x;\n" +
" var y;\n" +
" for (var i = 0; i < defaultSettings.watermark_rows; i++) {\n" +
" y = defaultSettings.watermark_y + (defaultSettings.watermark_y_space + defaultSettings.watermark_height) * i;\n" +
" for (var j = 0; j < defaultSettings.watermark_cols; j++) {\n" +
" x = defaultSettings.watermark_x + (defaultSettings.watermark_width + defaultSettings.watermark_x_space) * j;\n" +
" var mask_div = document.createElement('div');\n" +
" mask_div.id = 'mask_div' + i + j;\n" +
" mask_div.className = 'mask_div';\n" +
" mask_div.appendChild(document.createTextNode(defaultSettings.watermark_txt));\n" +
" mask_div.style.webkitTransform = \"rotate(-\" + defaultSettings.watermark_angle + \"deg)\";\n" +
" mask_div.style.MozTransform = \"rotate(-\" + defaultSettings.watermark_angle + \"deg)\";\n" +
" mask_div.style.msTransform = \"rotate(-\" + defaultSettings.watermark_angle + \"deg)\";\n" +
" mask_div.style.OTransform = \"rotate(-\" + defaultSettings.watermark_angle + \"deg)\";\n" +
" mask_div.style.transform = \"rotate(-\" + defaultSettings.watermark_angle + \"deg)\";\n" +
" mask_div.style.visibility = \"\";\n" +
" mask_div.style.position = \"absolute\";\n" +
" mask_div.style.left = x + 'px';\n" +
" mask_div.style.top = y + 'px';\n" +
" mask_div.style.overflow = \"hidden\";\n" +
" mask_div.style.zIndex = \"9999\";\n" +
" mask_div.style.pointerEvents = 'none';\n" +
" mask_div.style.opacity = defaultSettings.watermark_alpha;\n" +
" mask_div.style.fontSize = defaultSettings.watermark_fontsize;\n" +
" mask_div.style.fontFamily = defaultSettings.watermark_font;\n" +
" mask_div.style.color = defaultSettings.watermark_color;\n" +
" mask_div.style.textAlign = \"center\";\n" +
" mask_div.style.width = defaultSettings.watermark_width + 'px';\n" +
" mask_div.style.height = defaultSettings.watermark_height + 'px';\n" +
" mask_div.style.display = \"block\";\n" +
" oTemp.appendChild(mask_div);\n" +
" };\n" +
" };\n" +
" document.body.appendChild(oTemp);\n" +
" }\n" +
"</script>";
//用标签锁定添加位置
String indexStr = "</body>";
//组装
String newText = textHtml.replace(indexStr,indexStr+context);
//读的时候出现的问题，需要去除
newText = newText.replaceAll("null","");
//清空源文件里的内容
new PrintWriter(fileUrl,"UTF-8");
//写入
return fileOutput(fileUrl,newText);
}
//禁用右键
public static Boolean fileForbiddenIO(String fileUrl) throws FileNotFoundException, UnsupportedEncodingException {
String textHtml = fileInput(fileUrl);
String context ="\ndocument.oncontextmenu = function(){return false}";
String indexStr = "<script language=\"JavaScript\">";
String newText;
if (textHtml.indexOf(indexStr)==-1){//如果没有script就添加
context ="\n<script type=\"text/javascript\">\n" +
"document.oncontextmenu = function(){return false}\n"+
"</script>";
indexStr = "</body>";
newText = textHtml.replace(indexStr,indexStr+context);
}else {
newText = textHtml.replace(indexStr,indexStr+context);
}
newText = newText.replaceAll("null","");
new PrintWriter(fileUrl,"UTF-8");
return fileOutput(fileUrl,newText);
}
//获取文件路径数组
public static void getFilesList(File filesFolder, List<String> fileNames){
if (!filesFolder.exists() || !filesFolder.isDirectory()) {
return;
}
String[] files = filesFolder.list();
for (int i = 0; i < files.length; i++) {
File file = new File(filesFolder, files[i]);
if (file.isFile()) {//是文件
if (file.getName().endsWith(".htm")||file.getName().endsWith(".html")){//如果后缀符合储存
fileNames.add(filesFolder + file.separator + file.getName());
}
} else {//是目录
getFilesList(file, fileNames);
}
}
}
}
