自动生成mybatis的XML文件

package com.cn.util;


import java.lang.reflect.Field;


import org.apache.log4j.Logger;

import com.cn.model.credit.VehicleLicenseInfo;
/**
 * 自动生成mybatis的XML文件
 * */
public class AutoCreateXML {

//日志
private static final Logger LOGGER = Logger.getLogger(AutoCreateXML.class);


/**
* @param args
*/
public static void main(String[] args) {
// printGenerate(new MsgInfo(),"");
printGenerate(new VehicleLicenseInfo(),"");
}

public static void printGenerate(Object model,String prefix){
LOGGER.debug(generteXmlQueryPage(model,prefix)+"\n");
LOGGER.debug(generateXmlFindById(model,prefix)+"\n");
LOGGER.debug(generateXmlSave(model,prefix)+"\n");
LOGGER.debug(generateXmlUpdate(model,prefix)+"\n");
LOGGER.debug(generateXmlDelete(model,prefix));
}

/**生成XML add*/
public static String generateXmlSave(Object model,String prefix){

String simpleName=model.getClass().getSimpleName();//类名

String upperSimpleName = simpleName.replaceFirst(simpleName.substring(0, 1), simpleName.substring(0, 1).toUpperCase());

String add="\n";
add+="\n";
add+="INSERT INTO "+prefix+getColumnName(upperSimpleName).toUpperCase().substring(1)+"\n(\n";
String fields="";
String names="";
Field[] field = model.getClass().getDeclaredFields();        //获取实体类的所有属性，返回Field数组
for(int j=0 ; j            String name = field[j].getName();    //获取属性的名字
           fields+=getColumnName(name);
           if(name.contains("Date")||name.contains("Term")||name.contains("birthday")){
            names+="TO_DATE(#{"+name+"},'yyyy-mm-dd')";
           }else if(name.contains("Time")){
            names+="TO_DATE(#{"+name+"},'yyyy-mm-dd hh24:mi:ss')";
           }else {
            names+="#{"+name+"}";
}
           if(j             fields+=",\n";
            names+=",\n";
           }
}
add+=fields.toUpperCase()+"\n)\nVALUES\n(\n"+names+"\n)\n";
return add;
}

/**生成XML update*/
public static String generateXmlUpdate(Object model,String prefix){

String simpleName=model.getClass().getSimpleName();

String upperSimpleName = simpleName.replaceFirst(simpleName.substring(0, 1), simpleName.substring(0, 1).toUpperCase());

String update="\n";
update+="\n";
update+="UPDATE "+prefix+getColumnName(upperSimpleName).toUpperCase().substring(1)+" \nSET \n";
update+="\n";
Field[] field = model.getClass().getDeclaredFields();        //获取实体类的所有属性，返回Field数组
for(int j=1 ; j            String name = field[j].getName();    //获取属性的名字 
           update+="\n";
           if(name.contains("Date")||name.contains("Term")||name.contains("birthday")){
            update+=getColumnName(name).toUpperCase()+"=TO_DATE(#{"+name+"},'yyyy-mm-dd')";
           }else if(name.contains("Time")){
            update+=getColumnName(name).toUpperCase()+"=TO_DATE(#{"+name+"},'yyyy-mm-dd hh24:mi:ss')";
           }else {
            update+=getColumnName(name).toUpperCase()+"=#{"+name+"}";
}
           if(j             update+=",";
           }
           update+="\n\n";
}
update+="\n";
update+=" WHERE ID=#{id}\n";
return update;
}


/**生成XML findById*/
public static String generateXmlFindById(Object model,String prefix){

String simpleName=model.getClass().getSimpleName();

String upperSimpleName = simpleName.replaceFirst(simpleName.substring(0, 1), simpleName.substring(0, 1).toUpperCase());

String findById="\n";
findById+="\n";
findById+="SELECT \n";
Field[] field = model.getClass().getDeclaredFields();        //获取实体类的所有属性，返回Field数组
for(int j=0 ; j             String name = field[j].getName();    //获取属性的名字 
            
            if(name.contains("Date")||name.contains("Term")||name.contains("birthday")){
            findById+="TO_CHAR("+getColumnName(name).toUpperCase()+",'yyyy-mm-dd') AS "+name;
            }else if(name.contains("Time")){
            findById+="TO_CHAR("+getColumnName(name).toUpperCase()+",'yyyy-mm-dd hh24:mi:ss') AS "+name;
            }else {
            findById+=getColumnName(name).toUpperCase()+" AS "+name;
}
            if(j             findById+=",";
            }
            findById+="\n";
        }
findById+="FROM "+prefix+getColumnName(upperSimpleName).toUpperCase().substring(1);
findById+=" \nWHERE \n";
findById+="ID= #{id}\n";
findById+="";
return findById;
}

/**生成XML 根据条件分页查询*/
public static String generteXmlQueryPage(Object model,String prefix){
String simpleName=model.getClass().getSimpleName();
String upperSimpleName = simpleName.replaceFirst(simpleName.substring(0, 1), simpleName.substring(0, 1).toUpperCase());

String queryObjectPage="\n";

queryObjectPage+="\n";
queryObjectPage+="SELECT \n";
Field[] field = model.getClass().getDeclaredFields();        //获取实体类的所有属性，返回Field数组
for(int j=0 ; j             String name = field[j].getName();    //获取属性的名字 
            
            if(name.contains("Date")||name.contains("Term")||name.contains("birthday")){
            queryObjectPage+="TO_CHAR("+getColumnName(name).toUpperCase()+",'yyyy-mm-dd') AS "+name;
            }else if(name.contains("Time")){
            queryObjectPage+="TO_CHAR("+getColumnName(name).toUpperCase()+",'yyyy-mm-dd hh24:mi:ss') AS "+name;
            }else {
            queryObjectPage+=getColumnName(name).toUpperCase()+" AS "+name;
}
            if(j             queryObjectPage+=",";
            }
            queryObjectPage+="\n";
        }
queryObjectPage+="FROM "+prefix+getColumnName(upperSimpleName).toUpperCase().substring(1);
queryObjectPage+="\n";
queryObjectPage+="\n +".属性 != null and "+simpleName.replaceFirst(simpleName.substring(0, 1), simpleName.substring(0, 1).toLowerCase())
+".属性 != ''\">";
queryObjectPage+="\n字段 = #{"+simpleName.replaceFirst(simpleName.substring(0, 1), simpleName.substring(0, 1).toLowerCase())+".属性}";
queryObjectPage+="\n";
queryObjectPage+="\n";
queryObjectPage+="\n";
return queryObjectPage;
}

/**生成XML delete*/
public static String generateXmlDelete(Object model,String prefix){

String simpleName=model.getClass().getSimpleName();

String upperSimpleName = simpleName.replaceFirst(simpleName.substring(0, 1), simpleName.substring(0, 1).toUpperCase());
String del="\n";
del+="\n";
del+="DELETE FROM "+prefix+getColumnName(upperSimpleName).toUpperCase().substring(1)+" WHERE ID = #{id}\n";
del+="";
return del;
}

/**逆向转换字符串*/
public static String getColumnName(String field){
field=field.replaceAll("A", "_A");
field=field.replaceAll("B", "_B");
field=field.replaceAll("C", "_C");
field=field.replaceAll("D", "_D");
field=field.replaceAll("E", "_E");
field=field.replaceAll("F", "_F");
field=field.replaceAll("G", "_G");
field=field.replaceAll("H", "_H");
field=field.replaceAll("I", "_I");
field=field.replaceAll("J", "_J");
field=field.replaceAll("K", "_K");
field=field.replaceAll("L", "_L");
field=field.replaceAll("M", "_M");
field=field.replaceAll("N", "_N");
field=field.replaceAll("O", "_O");
field=field.replaceAll("P", "_P");
field=field.replaceAll("Q", "_Q");
field=field.replaceAll("R", "_R");
field=field.replaceAll("S", "_S");
field=field.replaceAll("T", "_T");
field=field.replaceAll("U", "_U");
field=field.replaceAll("V", "_V");
field=field.replaceAll("W", "_W");
field=field.replaceAll("X", "_X");
field=field.replaceAll("Y", "_Y");
field=field.replaceAll("Z", "_Z");
return field;
}

}

使用该方法生成xml文件时要注意变量以及数据库字段命名格式