basetreembean.java

以前做的一个j2ee的项目

package gov.gdlt.ssgly.taxweb.comm.util;

import gov.gdlt.ssgly.taxweb.comm.mbean.*;
import java.text.MessageFormat;
import java.util.Vector;
import gov.gdlt.ssgly.taxweb.mbean.qxgl.TreeNodeObject;
import gov.gdlt.ssgly.taxweb.mbean.qxgl.NodeValueObject;
import java.util.ArrayList;

public class BaseTreeMBean extends BaseManagedBean {
    protected ArrayList treeDataList;

    public BaseTreeMBean() {
    }

    /* 递归输出生成客户端树控件的javascript代码 */
    protected void buildTreeScript(TreeNodeObject treeNode, StringBuffer sb,
                                   String rootTreeNodeFormat,
                                   String otherTreeNodeFormat) {
        NodeValueObject nodeValue = null;
        TreeNodeObject nodeObject = null;
        Object[] arg = new Object[4];

        nodeValue = treeNode.getThisNode();
        // 根节点
        if ("0".equals(nodeValue.getParentId())) {
            arg[0] = nodeValue.getId();
            arg[1] = nodeValue.getName();
            arg[2] = nodeValue.getParentId();
            arg[3] = nodeValue.getUrlPath();
            sb.append(MessageFormat.format(rootTreeNodeFormat, arg));
        }
        // 输出该节点的所有子节点代码
        Vector v = treeNode.getChildNodes();
        // 该节点无子节点
        if (v == null) {
            return;
        }
        for (int i = 0; i < v.size(); i++) {
            nodeObject = (TreeNodeObject) v.get(i);
            nodeValue = nodeObject.getThisNode();
            arg[0] = nodeValue.getId();
            arg[1] = nodeValue.getName();
            arg[2] = nodeValue.getParentId();
            arg[3] = nodeValue.getUrlPath();
            sb.append(MessageFormat.format(otherTreeNodeFormat, arg));
            buildTreeScript(nodeObject, sb, rootTreeNodeFormat,
                            otherTreeNodeFormat);
        }
    }

    /* 递归输出生成客户端树控件的javascript代码，只在叶节点显示可选框。 */
    protected void buildTreeScriptWithLeafNodeEditable(TreeNodeObject treeNode,
                                   StringBuffer sb,
                                   String rootTreeNodeFormat,
                                   String otherTreeNodeFormat,
                                   String leafTreeNodeFormat) {
        NodeValueObject nodeValue = null;
        TreeNodeObject nodeObject = null;
        Object[] arg = new Object[4];
        Vector childVector = null;

        nodeValue = treeNode.getThisNode();
        // 根节点
        if ("0".equals(nodeValue.getParentId())) {
            arg[0] = nodeValue.getId();
            arg[1] = nodeValue.getName();
            arg[2] = nodeValue.getParentId();
            arg[3] = nodeValue.getUrlPath();
            sb.append(MessageFormat.format(rootTreeNodeFormat, arg));
        }
        // 输出该节点的所有子节点代码
        Vector v = treeNode.getChildNodes();
        // 该节点无子节点
        if (v == null) {
            return;
        }
        for (int i = 0; i < v.size(); i++) {
            nodeObject = (TreeNodeObject) v.get(i);
            nodeValue = nodeObject.getThisNode();
            arg[0] = nodeValue.getId();
            arg[1] = nodeValue.getName();
            arg[2] = nodeValue.getParentId();
            arg[3] = nodeValue.getUrlPath();
            // 如果是叶节点，就输出叶节点的script代码
            childVector = nodeObject.getChildNodes();
            if (childVector == null || childVector.size() == 0) {
                sb.append(MessageFormat.format(leafTreeNodeFormat, arg));
            } else {
                sb.append(MessageFormat.format(otherTreeNodeFormat, arg));
            }
            buildTreeScriptWithLeafNodeEditable(nodeObject, sb, rootTreeNodeFormat,
                            otherTreeNodeFormat, leafTreeNodeFormat);
        }
    }
}