MONGODB (iv)--dbobject and JavaBean conversion

First, DBObject to JavaBean

   /*** Convert entity Bean object to DBObject **/     Public Static<T>dbobject beantodbobject (T Bean)throwsIllegalArgumentException, illegalaccessexception {if(Bean = =NULL)            return NULL; DBObject DBObject=NewBasicdbobject (); //get the domain of the object classfield[] Fields =Bean.getclass (). Getdeclaredfields ();  for(Field field:fields) {//gets the property name of the variableString VarName =Field.getname (); //Modify access control permissions            BooleanAccessflag =field.isaccessible (); if(!Accessflag) {field.setaccessible (true); } Object param=Field.get (Bean); if(param = =NULL) {                Continue; } Else if(paraminstanceofInteger) {                //determine the type of the variable                intValue =((Integer) param). Intvalue ();            Dbobject.put (varName, value); } Else if(paraminstanceofString) {String value=(String) param;            Dbobject.put (varName, value); } Else if(paraminstanceofDouble) {                DoubleValue =((Double) param). Doublevalue ();            Dbobject.put (varName, value); } Else if(paraminstanceofFloat) {                floatValue =((Float) param). Floatvalue ();            Dbobject.put (varName, value); } Else if(paraminstanceofLong) {                LongValue =((Long) param). Longvalue ();            Dbobject.put (varName, value); } Else if(paraminstanceofBoolean) {                BooleanValue =((Boolean) param). Booleanvalue ();            Dbobject.put (varName, value); } Else if(paraminstanceofDate) {Date value=(Date) param;            Dbobject.put (varName, value); }            //Restore access control permissionsfield.setaccessible (Accessflag); }        returnDBObject; }

Second, JavaBean converted to DBObject

      /*** Convert DBObject to Bean Object **/     Public Static<T>T Dbobjecttobean (dbobject dbobject, T Bean)throwsillegalaccessexception, InvocationTargetException, nosuchmethodexception {if(Bean = =NULL) {            return NULL; } field[] fields=Bean.getclass (). Getdeclaredfields ();  for(Field field:fields) {String varName=Field.getname (); Object Object=Dbobject.get (varName); if(Object! =NULL) {Beanutils.setproperty (bean, VarName, object); }        }        returnBean; }    //Remove the attribute value from the MONGO and assign a value to the bean     Public Static<T>voidsetProperty (t Bean, String varName, T object) {VarName= varname.substring (0, 1). toUpperCase () + varname.substring (1); Try{String type=Object.getclass (). GetName (); //type is string            if(Type.equals ("java.lang.String") ) {Method m= Bean.getclass (). GetMethod ("get" +varName); String value=(String) M.invoke (bean); if(Value = =NULL) {m=Bean.getclass (). GetMethod ("Set" + VarName, String.class);                M.invoke (Bean, object); }            }            //type is integer            if(Type.equals ("Java.lang.Integer") ) {Method m= Bean.getclass (). GetMethod ("get" +varName); String value=(String) M.invoke (bean); if(Value = =NULL) {m= Bean.getclass (). GetMethod ("set" +varName, Integer.class);                M.invoke (Bean, object); }            }            //type is Boolean            if(Type.equals ("Java.lang.Boolean") ) {Method m= Bean.getclass (). GetMethod ("get" +varName); String value=(String) M.invoke (bean); if(Value = =NULL) {m= Bean.getclass (). GetMethod ("set" +varName, Boolean.class);                M.invoke (Bean, object); }            }        } Catch(nosuchmethodexception e) {e.printstacktrace (); } Catch(SecurityException e) {e.printstacktrace (); } Catch(illegalaccessexception e) {e.printstacktrace (); } Catch(IllegalArgumentException e) {e.printstacktrace (); } Catch(InvocationTargetException e) {e.printstacktrace (); }    }

MONGODB (iv)--dbobject and JavaBean conversion