java+ jsp+js 实现富文本编辑和上传图片功能
- 使用kindeditor富文本插件：
- kindeditor富文本官网地址
详细的文档和demo都有
- 下面是实现步骤：
-导入项目中相关的文件
jsp中的引入相关的css js文件
<!---引入kindeditor的样式文件-->
<link rel="stylesheet" href="../kindeditor/plugins/code/prettify.css" />
<link rel="stylesheet" href="../kindeditor/themes/default/default.css" />
<%--富文本编辑 js文件--%>
<script charset="utf-8" src="../kindeditor/kindeditor-all.js"></script>
<script charset="utf-8" src="../kindeditor/kindeditor-all-min.js"></script>
<script charset="utf-8" src="../kindeditor/lang/zh-CN.js"></script>
<script charset="utf-8" src="../kindeditor/plugins/code/prettify.js"></script>
js代码块
var KE;
KindEditor.ready(function(K) {
KE = K.create("textarea[id='editor']", {
allowUpload : true,
urlType : 'domain',//relative为相对路径，absolute为绝对路径，domain为带域名的绝对路径
// allowFileManager:true, //允许对上传图片进行管理
allowPreviewEmoticons : false,//
allowFileManager : true, //浏览图片空间
allowImageUpload: true, //多图上传。允许上传图片
imageTabIndex : 1, //点击上传图片按钮默认显示标签，1为本地上传，默认为0网络图片
allowImageRemote: false,//指定不能网络图片
filterMode : false, //HTML特殊代码过滤，不会过滤HTML代码
resizeType : 1, //文本框不可拖动
cssPath :项目路径+'/kindeditor/plugins/code/prettify.css',
uploadJson :项目路径+'/fileouterupload/fileUpload.do',//上传图片到Java逻辑地址
afterCreate : function() {
this.sync();
},
afterBlur : function() {
this.sync();
},
afterBlur: function(){ this.sync(); }, //编辑器失去焦点(blur)时执行的回调函数（将编辑器的HTML数据同步到textarea）
// afterUpload : function(url, data, name) { //上传文件后执行的回调函数，必须为3个参数
// if(name=="image" || name=="multiimage"){ //单个和批量上传图片时
// if(K("#pic").length>0){ //文本框存在
// document.getElementById('piclist').options[document.getElementById('piclist').length]=new Option(url,url); //下拉列表框增加一条
// document.getElementById('piclist').selectedIndex+=1; //选定刚新增的这一条
// K("#indexpicimg").html("<img src='" + url + "' width='100px' height='100px' />"); //重置图片展示区DIV的HTML内容
// K("#pic").val(url); //重置文本框值
// }
// }
//},
});
//KE.get
prettyPrint();
});
java逻辑代码
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.FileUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.*;
/**
* kindeditor编辑器控制部分
*/
@Controller
@RequestMapping("/fileouterupload")
public class FileManageActionController extends BaseAction
{
// windows
private String PATH_LINEs = "\\";
// linux
private String PATH_LINE = "/";
/**
* 文件上传
* @param request {@link HttpServletRequest}
* @param response {@link HttpServletResponse}
* @return json response
*/
@SuppressWarnings("unchecked")
@RequestMapping(value = "/fileUpload", method = RequestMethod.POST)
@ResponseBody
public void fileUpload(HttpServletRequest request, HttpServletResponse response,@RequestParam(value = "imgFile", required = false) MultipartFile[] imgFile ) {
try {
response.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter();
//文件保存本地目录路径
String savePath = MapCacheManager.getInstance().getMapCache().get("serverPathUp");
String serverPicPath = savePath + "/" + "pic"+ "/";
//文件保存目录URL
String saveUrls =MapCacheManager.getInstance().getMapCache().get("serverPaths");
String saveUrlPath = saveUrls + "/" + "upload"+ "/";
if(!ServletFileUpload.isMultipartContent(request)){
out.print(getError("请选择文件。"));
out.close();
return;
}
//检查目录
File uploadDir = new File(serverPicPath);
if(!uploadDir.isDirectory()){
out.print(getError("上传目录不存在。"));
out.close();
return;
}
//检查目录写权限
if(!uploadDir.canWrite()){
out.print(getError("上传目录没有写权限。"));
out.close();
return;
}
String dirName = request.getParameter("dir");
if (dirName == null) {
dirName = "image";
}
//定义允许上传的文件扩展名
Map<String, String> extMap = new HashMap<String, String>();
extMap.put("image", "gif,jpg,jpeg,png,bmp");
extMap.put("flash", "swf,flv");
extMap.put("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");
extMap.put("file", "doc,docx,xls,xlsx,ppt,htm,html,xml,txt,zip,rar,gz,bz2");
if(!extMap.containsKey(dirName)){
out.print(getError("目录名不正确。"));
out.close();
return;
}
//创建文件夹
serverPicPath += dirName + PATH_LINE;
saveUrlPath+= dirName + PATH_LINE;
File saveDirFile = new File(serverPicPath);
if (!saveDirFile.exists()) {
saveDirFile.mkdirs();
}
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
String ymd = sdf.format(new Date());
serverPicPath += ymd + PATH_LINE;
saveUrlPath += ymd + PATH_LINE;
File dirFile = new File(serverPicPath);
if (!dirFile.exists()) {
dirFile.mkdirs();
}
//最大文件大小
long maxSize = 1000000;
// 保存文件
for(MultipartFile iFile : imgFile){
String fileName = iFile.getOriginalFilename();
//检查文件大小
if(iFile.getSize() > maxSize){
out.print(getError("上传文件大小超过限制。"));
out.close();
return;
}
//检查扩展名
String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();
if(!Arrays.<String>asList(extMap.get(dirName).split(",")).contains(fileExt)){
out.print(getError("上传文件扩展名是不允许的扩展名。\n只允许" + extMap.get(dirName) + "格式。"));
out.close();
return;
}
SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;
try{
File uploadedFile = new File(serverPicPath, newFileName);
}catch(Exception e){
out.print(getError("上传文件失败。"));
out.close();
return;
}
System.out.println(saveUrlPath+newFileName);
JSONObject obj = new JSONObject();
obj.put("error", 0);
obj.put("url", saveUrlPath + newFileName);
System.out.println(newFileName+"上传的图片");
out.print(obj.toJSONString());
out.close();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private Map<String, Object> getError(String errorMsg) {
Map<String, Object> errorMap = new HashMap<String, Object>();
errorMap.put("error", 1);
errorMap.put("message", errorMsg);
return errorMap;
}
}图片保存路径配置
serverPathUp=/opt/data/html/upload/(访问路径)
serverPaths=http://ip地址:端口号
