Ejemplo n.º 1
0
 public void run() {
   try {
     BufferedReader bf =
         new BufferedReader(new InputStreamReader(socket.getInputStream(), "utf8"));
     while (true) {
       print(bf.readLine());
     }
   } catch (Exception e) {
     e.printStackTrace();
   }
 }
Ejemplo n.º 2
0
 /**
  * `获取给定对象的属性的值` `@param fieldName 属性名` `@param obj 对象`
  *
  * @return
  */
 public static Object getFieldValue(String fieldName, Object obj) {
   try {
     Class cls = obj.getClass();
     Field field = cls.getDeclaredField(fieldName);
     return field.get(obj);
   } catch (Exception e) {
     e.printStackTrace();
     print("Field access error!");
     throw new RuntimeException(e);
   }
 }
Ejemplo n.º 3
0
 /**
  * `使用反射机制调用方法`
  *
  * @param methodName Method name
  * @param obj Object holder of the method
  * @param paraType Array of parameter types
  * @param paraValue Array of parameters
  * @return Returned object of the method
  */
 public static Object call(String methodName, Object obj, Class[] paraType, Object[] paraValue) {
   try {
     Class cls = obj.getClass();
     Method method = cls.getDeclaredMethod(methodName, paraType);
     // invoke() returns the object returned by the
     // 		underlying method.
     // It returns null, if the underlying method returns void.
     return method.invoke(obj, paraValue);
   } catch (Exception e) {
     e.printStackTrace();
     throw new RuntimeException(e);
   }
 }
Ejemplo n.º 4
0
 /** `使用类名创建对象` `@param className 类名` `@return 创建的对象` */
 public static Object create(String className) {
   try {
     // `获取Class的实例,即所描述的类`
     // `JVM先在内存中寻找这个实例,如果有,则直接使用;如果没有,就加载.class文件,`
     // `创建文类的Class实例,并存入内存。`
     // `这种加载机制叫做惰性加载。`
     Class cls = Class.forName(className);
     return cls.newInstance();
   } catch (Exception e) {
     e.printStackTrace();
     // Throw the exception to suppress error message.
     throw new RuntimeException(e);
   }
 }
Ejemplo n.º 5
0
 public static int execute() throws SQLException {
   int flag = -1;
   Connection conn = null;
   CallableStatement cstmt = null;
   try {
     conn = ConnUtil.openConnection();
     String sql = "{call av_sal(?,?)}";
     cstmt = conn.prepareCall(sql);
     cstmt.setInt(1, 20);
     cstmt.registerOutParameter(2, Types.NUMERIC);
     cstmt.execute();
     flag = (int) cstmt.getFloat(2);
     // flag=cstmt.getInt(2);
     return flag;
   } catch (Exception e) {
     e.printStackTrace();
   } finally {
     ConnUtil.closeStatement(cstmt);
     ConnUtil.closeConnection(conn);
   }
   return flag;
 }