JDBC查询Map转对象实现过程详解

@SuppressWarnings("unchecked") 
public static MS_Mont analyzeMapToMS_Mont(Map map){ 
  MS_Mont obj = new MS_Mont(); 
  if(null != map.get("montNo")) obj.setMontNo(Integer.parseInt(map.get("montNo").toString())); 
  if(null != map.get("montName")) obj.setMontName(map.get("montName").toString()); 
  if(null != map.get("montType")) obj.setMontType(Integer.parseInt(map.get("montType").toString())); 
  if(null != map.get("montLength")) obj.setMontLength(Integer.parseInt(map.get("montLength").toString())); 
  if(null != map.get("montDesc")) obj.setMontDesc(map.get("montDesc").toString()); 
  if(null != map.get("bigType")) obj.setBigType(Integer.parseInt(map.get("bigType").toString())); 
  if(null != map.get("bigTypeName")) obj.setBigTypeName(map.get("bigTypeName").toString()); 
  if(null != map.get("littleType")) obj.setLittleType(Integer.parseInt(map.get("littleType").toString())); 
  if(null != map.get("littleTypeName")) obj.setLittleTypeName(map.get("littleTypeName").toString()); 
  if(null != map.get("insertTime")) obj.setInsertTime(map.get("insertTime").toString()); 
  if(null != map.get("updateTime")) obj.setUpdateTime(map.get("updateTime").toString()); 
  if(null != map.get("userNoRe")) obj.setUserNoRe(Integer.parseInt(map.get("userNoRe").toString())); 
  if(null != map.get("userNoLast")) obj.setUserNoLast(Integer.parseInt(map.get("userNoLast").toString())); 
  return obj; 
} 

public CM_Line getObjectBean(int lineNo) { 
  try { 
    String sql = "select * from cm_line where lineNo=?"; 
    Object[] obj = new Object[]{ lineNo }; 
    List rows = jdbcTemplate.queryForList( sql, obj ); 
    if(null != rows && rows.size() > 0) { 
      CM_Line line = new CM_Line(); 
      return (CM_Line) line.analyzeMap((Map)rows.get(0)); 
    } else { 
      return null; 
    } 
  } catch (Exception e) { 
    logger.error(e); 
  } 
  return null; 
} 

public Object analyzeMap(Map<String, Object> para){ 
  Object obj = this; 
  ObjectUtil.setValToObj(obj, para); 
  return obj; 
} 

public synchronized static void setValToObj(Object entityName, Map<String, Object> para){ 
  try { 
    Class c = entityName.getClass(); 
    // 获得对象属性   
    Field field[] = c.getDeclaredFields(); 
    for (Field f : field) {  
      try { 
        PropertyDescriptor pd = new PropertyDescriptor(f.getName(), c);  
        Method writeMethod = pd.getWriteMethod(); 
        if(!CommonCheck.isNullOrEmpty(para.get(f.getName()))) 
          writeMethod.invoke(entityName, para.get(f.getName())); 
      } catch (Exception e) { 
      } 
    } 
  } catch (Exception e) { 
  } 
} 

/**  
 * 返回一个对象的属性和属性值
 */   
public synchronized static LinkedHashMap<String,String> getProAndValMap(Object entityName) {  
	LinkedHashMap<String,String> map = new LinkedHashMap<String, String>();  
  try {  
    Class c = entityName.getClass();  
    // 获得对象属性  
    Field field[] = c.getDeclaredFields();   
    for (Field f : field) {
      Object v = invokeMethod(entityName, f.getName(), null);  
      if(null != v) map.put(f.getName(), v.toString());
      else map.put(f.getName(), "");
    }  
  } catch (Exception e) {  
    map = null;  
  }  
  return map;  
}
/**
 * 获得对象属性的值
 */
private synchronized static Object invokeMethod(Object owner, String methodName,
		Object[] args) throws Exception {
	Class ownerClass = owner.getClass();
	methodName = methodName.substring(0, 1).toUpperCase() + methodName.substring(1);
	Method method = null;
	try {
		method = ownerClass.getMethod("get" + methodName);
	} catch (Exception e) {
	}
	return method.invoke(owner);
}