xml格式转换为Bean

/**
 * 
 */
package com.hdrs.ris.law2.large.xml.utils;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.List;
/**
 * 该程序可以从xml中提出生成对应的beans，方便jaxb使用
 * 
 * 解析说明：
 * 1、如果使用"/>"做为结束，元素的开始和结束必须在一行.
 * 2、如果使用</元素>结束，元素的开始和结束标签不能在一行。
 * 3、如果某个元素为list，这元素中添加属性list(类型)用以标记，如<users list(user)>
 * 
 * @author liuwenbin
 */
public class CreateBeansFromXml {
    private static List<String> createFileNames=new ArrayList<String>();
    private static List<String> error=new ArrayList<String>();
    private static String listNameString="";
    /**
     * 创建java beans的主方法
     * @param xmlFile xml文件的路径和文件名
     * @param outBeansPath 生成beans存放的路径
     */
    public static void createBeans(String xmlFile,String outBeansPath) throws Exception {
        File file=new File(xmlFile);
        BufferedReader bufferedReader=new BufferedReader(new FileReader(file));
        String line=bufferedReader.readLine();
        String makeFile="";
        String parent="";
        List<String> parents=new ArrayList<String>();
        boolean isHead=true;
        List<String> listElement=new ArrayList<String>();
        while(null!=line){
            if(line.contains("<?xml")){
                line=bufferedReader.readLine();
                continue;
            }
            makeFile="";
            line=line.trim();
            if(line.startsWith("<")){
                if(line.contains("/>")){
                    if(line.contains(" ")){
                        makeFile=line.substring(line.indexOf("<")+1,line.indexOf(" "));
                        parent=parents.get(parents.size()-1);
                        fileWrite(outBeansPath+firstToUp(parent), writeElement(makeFile));
                        //生成java文件
                        if(createFileNames.contains(outBeansPath+firstToUp(makeFile))){
                            error.add(makeFile);
                        }
                        createFileNames.add(outBeansPath+firstToUp(makeFile));
                        fileWrite(outBeansPath+firstToUp(makeFile), makeJavaHead(false,isHead,makeFile));
                        String[] contents=line.substring(line.indexOf(" ")+1,line.indexOf("/>")).split(" ");
                        for (String string : contents) {
                            if(string.contains("=")){
                                fileWrite(outBeansPath+firstToUp(makeFile), writeAttribute(string.split("=")[0]));
                            }
                        }
                    }else{
                        makeFile=line.substring(line.indexOf("<")+1,line.indexOf("/>"));
                    }
                }else if(line.contains("</")){
                    makeFile=line.substring(line.indexOf("</")+2,line.lastIndexOf(">"));
                    if(line.contains("<"+makeFile+">")){
                        parent=parents.get(parents.size()-1);
                        if(!listNameString.contains("list("+makeFile)){
                            fileWrite(outBeansPath+firstToUp(parent), writeElementString(makeFile));
                        }
                    }else{
                        parents.remove(makeFile);
                    }
                }else{
                    line=line.substring(line.indexOf("<")+1,line.indexOf(">"));
                    if(line.contains(" ")){
                        makeFile=line.substring(0,line.indexOf(" "));
                    }else{
                        makeFile=line;
                    }
                    if(!isHead){
                        parent=parents.get(parents.size()-1);
                        if(!listElement.contains(makeFile)){
                            fileWrite(outBeansPath+firstToUp(parent), writeElement(makeFile));
                        }
                    }
                    parents.add(makeFile);
                    if(createFileNames.contains(outBeansPath+firstToUp(makeFile))){
                        error.add(makeFile);
                    }
                    createFileNames.add(outBeansPath+firstToUp(makeFile));
                    if(line.contains("list(")){
                        fileWrite(outBeansPath+firstToUp(makeFile), makeJavaHead(true,isHead,makeFile));
                    }else{
                        fileWrite(outBeansPath+firstToUp(makeFile), makeJavaHead(false,isHead,makeFile));
                    }
                    isHead=false;
                    if(line.contains(" ")){
                        String attrs[] =line.substring(line.indexOf(" ")+1).split(" ");
                        for (String attr : attrs) {
                            if(attr.contains("=")){
                                attr=attr.split("=")[0];
                                if(attr.startsWith("list(")){
                                    listNameString=attr+"||";
                                    attr=attr.substring(attr.indexOf("list(")+5,attr.indexOf(")"));
                                    listElement.add(attr);
                                    fileWrite(outBeansPath+firstToUp(makeFile), writeElementList(attr));
                                }else{
                                    fileWrite(outBeansPath+firstToUp(makeFile), writeAttribute(attr));
                                }
                            }else if (attr.startsWith("list(")) {
                                listNameString=attr+"||";
                                attr=attr.substring(attr.indexOf("list(")+5,attr.indexOf(")"));
                                listElement.add(attr);
                                fileWrite(outBeansPath+firstToUp(makeFile), writeElementList(attr));
                            }
                        }
                    }
                }
            }
            line=bufferedReader.readLine();
        }
        bufferedReader.close();
        //为生成的文件添加getter和setter方法
        File fileDir=new File(outBeansPath);
        File[] files=fileDir.listFiles();
        BufferedReader bufferedReader2=null;
        String[] contSplit=null;
        for (File file2 : files) {
            if(file2.getName().contains(".svn")){
                continue;
            }
            bufferedReader2=new BufferedReader(new FileReader(file2));
            line=bufferedReader2.readLine();
            while(null!=line){
                if(line.contains("private")){
                    contSplit=line.split(" ");
                    writeGetterAndSetterToFile(file2.getAbsolutePath(), writeGetterAndSetter(contSplit[2].substring(0,contSplit[2].length()-1), contSplit[1]));
                }
                line=bufferedReader2.readLine();
            }
            writeGetterAndSetterToFile(file2.getAbsolutePath(), "}");
        }
        bufferedReader2.close();
        System.out.println("======================全部结束=====================");
        System.out.println("一共创建"+createFileNames.size()+"个文件：");
        for (String string : createFileNames) {
            System.out.println(string+".java");
        }
        System.out.println("---------------------------------------------------");
        if(error.size()!=0){
            System.out.println("产生错误:");
            for (String string : error) {
                System.out.println(string+"重复，可能为list，其父节点应该加上"list("+string+")"标识，并删除重复段");
            }
        }
    }
    /**
     * 写文件
     * @param fileName 文件名
     * @param content 内容
     * @throws Exception
     */
    private static void fileWrite(String fileName,String content) throws Exception{
        File file=new File(fileName+".java");
        if(!file.exists()){
            file.createNewFile();
        }
        BufferedWriter bufferedWriter=new BufferedWriter(new FileWriter(file,true));
        bufferedWriter.write(content);
        bufferedWriter.flush();
        bufferedWriter.close();
    }
    /**
     * 将get和set方法写到文件中
     * @param fileName
     * @param content
     * @throws Exception
     */
    private static void writeGetterAndSetterToFile(String fileName,String content) throws Exception{
        File file=new File(fileName);
        if(!file.exists()){
            file.createNewFile();
        }
        BufferedWriter bufferedWriter=new BufferedWriter(new FileWriter(file,true));
        bufferedWriter.write(content);
        bufferedWriter.flush();
        bufferedWriter.close();
    }
    /**
     * 生成java beans文件头
     * @param importList 是否是list
     * @param isHead 是否是头部
     * @param Element 元素名称
     * @return
     */
    private static String makeJavaHead(boolean importList,boolean isHead,String Element){
        StringBuffer buffer=new StringBuffer();
        buffer.append("package com.hdrs.ris.law2.large.xml.add;

");
        buffer.append("import com.thoughtworks.xstream.annotations.XStreamAlias;
");
        if(importList){
            buffer.append("import java.util.List;
");
        }
        if(isHead){
            buffer.append("@XStreamAlias("");
            buffer.append(Element);
            buffer.append("")
");
        }
        buffer.append("public class ");
        buffer.append(firstToUp(Element));
        buffer.append(" {
");
        return buffer.toString();
    }
    /**
     * 写元素(字符串)
     * @param Element 元素
     * @return
     */
    private static String writeElementString(String Element){
        StringBuffer buffer=new StringBuffer();
        buffer.append("	@XStreamAlias("");
        buffer.append(Element);
        buffer.append("")
");
        buffer.append("	private ");
        buffer.append("String");
        buffer.append(" ");
        buffer.append(Element);
        buffer.append(";

");
        return buffer.toString();
    }
    /**
     * 写元素(对象)
     * @param Element 元素
     * @return
     */
    private static String writeElement(String Element){
        StringBuffer buffer=new StringBuffer();
        buffer.append("	@XStreamAlias("");
        buffer.append(Element);
        buffer.append("")
");
        buffer.append("	private ");
        buffer.append(firstToUp(Element));
        buffer.append(" ");
        buffer.append(Element);
        buffer.append(";

");
        return buffer.toString();
    }
    /**
     * 写元素(list)
     * @param Element 元素
     * @return
     */
    private static String writeElementList(String Element){
        StringBuffer buffer=new StringBuffer();
        buffer.append("	@XStreamAlias("");
        buffer.append(Element);
        buffer.append("")
");
        buffer.append("	private List<");
        buffer.append(firstToUp(Element));
        buffer.append("> ");
        buffer.append(Element);
        buffer.append("s;

");//如果是list加”S“
        return buffer.toString();
    }
    /**
     * 写属性
     * @param attr 属性名称
     * @return
     */
    private static String writeAttribute(String attr){
        StringBuffer buffer=new StringBuffer();
        buffer.append("	@XStreamAsAttribute");
        buffer.append("
");
        buffer.append("	private ");
        buffer.append("String");
        buffer.append(" ");
        buffer.append(attr);
        buffer.append(";

");
        return buffer.toString();
    }
    public static String writeGetterAndSetter(String param,String type){
        //Getter
        StringBuffer buffer=new StringBuffer();
        buffer.append("
	public ");
        buffer.append(type);
        buffer.append(" get");
        buffer.append(firstToUp(param));
        buffer.append("() {
");
        buffer.append("		return ");
        buffer.append(param);
        buffer.append(";
");
        buffer.append("	}
");
        //Setter
        buffer.append("	public void ");
        buffer.append("set");
        buffer.append(firstToUp(param));
        buffer.append("(");
        buffer.append(type);
        buffer.append(" ");
        buffer.append(param);
        buffer.append(") {
");
        buffer.append("		this.");
        buffer.append(param);
        buffer.append(" = ");
        buffer.append(param);
        buffer.append(";
");
        buffer.append("	}
");
        return buffer.toString();
    }
    /**
     * 首字母大写
     * @param word 单词
     * @return
     */
    private static String firstToUp(String word){
        return word.replaceFirst(word.substring(0, 1), word.substring(0, 1).toUpperCase());
    }
}

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将Bean转化为XML，使用XStream