我靠，要疯了，救命吧！

Question

左边的树有时候出不了，有时候分页标签不能用，先给100分。谁解决了都给他。不够再加。真要疯了。weblogic  换成 tomcat5.0

Answer 1

weblogic的jsp解析器可能是自己写的.
tomcat环境下它认为JspWriter out已经关闭了. 看看哪里是不是调用了out.close()之类什么的。
检查下这个标签里面怎么封装的com.cattsoft.webpub.tag.TreeTag.doStartTag
或者换个高版本的5.5.x的tomcat试试。 java.io.IOException: Stream closed
at org.apache.jasper.runtime.JspWriterImpl.ensureOpen(JspWriterImpl.java:204)
at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:312)
at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:337)
at com.cattsoft.webpub.tag.TreeTag.doStartTag(TreeTag.java:250)
at org.apache.jsp.sm.login.framan_jsp._jspx_meth_tree_tree_0(framan_jsp.java:112)
at org.apache.jsp.sm.login.framan_jsp._jspService(framan_jsp.java:81)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) 

Answer 2

我也认为TreeTag的实现有问题。

Answer 3

   public int doStartTag() {
        getOut();
        String path = getJsPath();
        if (path != null) {
            path += "/";
        }
        try {
            if (path != null) {
                out.println("<script src=\"" + path + "sps_tree.js\"></script>");
                out.println("<script src=\"" + path + "tree_menu.js\"></script>");
                out.println("<script src=\"" + path + "sm_tree.js\"></script>");
            }
            out.println("<script>");
            if (getNodeType() != null) {
                out.println("var nodeType = \"" + getNodeType() + "\"");
            } else {
                out.println("var nodeType = \"url\"");
            }
            if (getLeafType() != null) {
                out.println("var leafType = \"" + getLeafType() + "\"");
            } else {
                out.println("var leafType = \"url\"");
            }            out.println("var nUrl = \"" + getHref() + "\"");
            out.println("var lUrl = \"" + getHrefLeaf() + "\"");
            out.println("var selectedNode = null;");
            out.println("var tar = \"" + getTarget() + "\"");
            out.println("var  = \"" + getMark() + "\"");
            if (getMenuWidth() != null && !"".equalsIgnoreCase(getMenuWidth())) {
                out.println("var menu = new tree_menu(" + getMenuWidth() + ");");
            } else {
                out.println("var menu = new tree_menu(120);");
            }
            out.println("var unfoldAllItem = null;");
            out.println("var foldAllItem = null;");
            if (getInitMenu() != null
                    && ("y".equalsIgnoreCase(getInitMenu())
                            || "true".equalsIgnoreCase(getInitMenu()) || "yes"
                            .equalsIgnoreCase(getInitMenu()))) {
                out.println("beforeItemAdd();");
            }
            out.println("if(=='login'){");
            out.println("unfoldAllItem = menu.add(\"全部展开\",null,'js',\"smunfold(root,null,-1)\");");
            out.println("foldAllItem = menu.add(\"全部收缩\",null,'js',\"smunfold(root,true,-1)\");");
            out.println("}else{");
            out.println("unfoldAllItem = menu.add(\"全部展开\",null,'js',\"unfold(root,null,-1)\");");
            out.println("foldAllItem = menu.add(\"全部收缩\",null,'js',\"unfold(root,true,-1)\");");
            out.println("}");            if (getInitMenu() != null && "y".equalsIgnoreCase(getInitMenu())
                    || "true".equalsIgnoreCase(getInitMenu())
                    || "yes".equalsIgnoreCase(getInitMenu())) {                out.println("afterItemAdd();");
            }
            out.println("document.body.oncontextmenu=function(){event.returnValue=false;}");
            out.println("document.body.onmousedown=function(){");
            if (getShowMenu() != null
                    && !("".equalsIgnoreCase(getShowMenu()) || "y".equalsIgnoreCase(getShowMenu())
                            || "true".equalsIgnoreCase(getShowMenu()) || "yes"
                            .equalsIgnoreCase(getShowMenu()))) {
                out.println("  return;");
            }
            out.println(" if(event.button==2){");
            out.println("   beforeMenu();");
            out.println("   menu.show();");
            out.println("   afterMenu();");
            out.println(" }");
            out.println("}");
            out.println("   ");            out.println("</script>");
            String nameForm = this.getFormName();
            if (nameForm == null || "".equals(nameForm)) {
                nameForm = "formName";
            }
            if ("tempForm".equalsIgnoreCase(nameForm)) {
                nameForm.concat("z");
            }
            out
                    .println("<form name='tempForm'><input type='hidden' name='temp' value='-1'/><input type='hidden' name='type' value='o'/></form> <form name='"
                            + nameForm + "'  id = 'treeFormName' >");
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        String tree = getTree();
        try {
            out.write(tree);            if (getDepth() != null && !"".equalsIgnoreCase(getDepth())) {
                out.println("<script>");
                out.println("if(=='login')");
                out.println("smunfold(root,null," + getDepth() + ");");
                out.println("else ");
                out.println("unfold(root,null," + getDepth() + ");");
                out.println("</script>");
            }
        } catch (IOException ex1) {
            ex1.printStackTrace();
        }
/*        finally {
         try{
         out.close();
         }catch(IOException e){
         e.printStackTrace();
         }
        }*/
        return EVAL_BODY_INCLUDE;
    }
帮忙看看。我试看看用tomcat5.5

Answer 4

不晓得你的 out 是哪个对象
  如果是 :JspWriter out = pageContext.getOut(); 
换成:   JspWriter out =  bodyContent.getEnclosingWriter(); 
试 试...

Answer 5

我想知道getOut()的内容。
我觉得是out对象的实例创建的时候有点问题。

Answer 6

        if (out == null) {
            out = pageContext.getOut();
        }
        return out;麻烦

Answer 7

你可以从两点着手查一下，
1.out对象里面的response是否为空。
2.out对象里面的closed状态是否为true。我觉得第一种可能性很大。

Answer 8

在tomcat下我貌似以前也碰到过，好像out使用次数过多会出现这样的问题，你想截掉去一部分看看，会不会好了。如果不好，再想其他办法

Answer 9

我学得也是out输出的问题,你把所有的out都关了试下,另外可以用别的方式输出啊

Answer 10

我觉得是out输出的问题, 关闭out，导入所需的jar