Architecture Adventure-learned knowledge

I. Commonly used tool classes

1. Tool classes for encoding and decoding

/*** Encoding and decoding Operation Tool class * *@authorSolverpeng * @create 2016-06-23-21:54*/ Public Final classCodecutil {Private Static FinalLogger Logger = Loggerfactory.getlogger (codecutil.class); /*** Encode the URL*/     Public Staticstring Encodeurl (String source) {string target; Try{target= Urlencoder.encode (source, "UTF-8"); } Catch(unsupportedencodingexception e) {logger.error ("Encode URL failure", E); Throw NewRuntimeException (e); }        returnTarget; }    /*** Decode URL*/     Public Staticstring Decodeurl (String source) {string target; Try{target= Urldecoder.decode (source, "UTF-8"); } Catch(unsupportedencodingexception e) {logger.error ("Decode URL Failure", E); Throw NewRuntimeException (e); }        returnTarget; }}

Codecutil

Conversion between 2.POJO and JSON

/*** JSON Tool class * *@authorSolverpeng * @create 2016-06-24-11:54*/ Public Final classJsonutil {Private Static FinalLogger Logger = Loggerfactory.getlogger (jsonutil.class); Private Static FinalObjectmapper Object_mapper =NewObjectmapper (); /*** Convert POJO to JSON*/     Public Static<T>string ToJson (T obj) {string json; Try{JSON=object_mapper.writevalueasstring (obj); } Catch(jsonprocessingexception e) {logger.error ("Convert POJO to JSON failure", E); Throw NewRuntimeException (e); }        returnJSON; }    /*** Convert JSON to POJO*/     Public Static<T> T Fromjson (String json, class<t>type)        {T Pojo; Try{Pojo=Object_mapper.readvalue (JSON, type); } Catch(IOException e) {logger.error ("Convert JSON to POJO failure", E); Throw NewRuntimeException (e); }        returnPojo; }}

Jsonutil

3. Reflection Tool Class

/*** Reflection Tool class * *@authorSolverpeng * @create 2016-06-23-18:06*/ Public Final classReflectionutil {Private Static FinalLogger Logger = Loggerfactory.getlogger (reflectionutil.class); /*** Create an instance*/     Public StaticObject newinstance (class<?>CLS)        {Object instance; Try{instance=cls.newinstance (); } Catch(Exception e) {logger.error ("New instance Failure", E); Throw NewRuntimeException (e); }        returninstance; }    /*** Call Method*/     Public Staticobject InvokeMethod (Object obj, Method method, Object ... args) {object result; Try{method.setaccessible (true); Result=method.invoke (obj, args); } Catch(Exception e) {logger.error ("Invoke Method Failure", E); Throw NewRuntimeException (e); }        returnresult; }    /*** Set Properties*/     Public Static voidSetField (Object obj, Field field, Object value) {Try{field.setaccessible (true);        Field.set (obj, value); } Catch(illegalaccessexception e) {logger.error ("Set field failure", E); Throw NewRuntimeException (e); }    }}

Reflectionutil

Two. Other knowledge

1. Annotation development

/*** Action Method Note * *@authorSolverpeng * @create 2016-06-23-16:58*/@Target (Elementtype.method) @Retention (retentionpolicy.runtime) Public@InterfaceAction {/*** Request type and path*/String value ();}/*** Controller Notes * *@authorSolverpeng * @create 2016-06-23-16:57*/@Target (Elementtype.type) @Retention (retentionpolicy.runtime) Public@InterfaceController {}/*** Dependency Injection annotations * *@authorSolverpeng * @create 2016-06-23-17:02*/@Target (Elementtype.field) @Retention (retentionpolicy.runtime) Public@InterfaceInject {}/*** Service Class NOTE * *@authorSolverpeng * @create 2016-06-23-17:00*/@Target (Elementtype.type) @Retention (retentionpolicy.runtime) Public@InterfaceService {}

Action Controller Service Inject

2. Handling of exceptions and logs

Private Static FinalLogger Logger = Loggerfactory.getlogger (codecutil.class); /*** Encode the URL*/     Public Staticstring Encodeurl (String source) {string target; Try{target= Urlencoder.encode (source, "UTF-8"); } Catch(unsupportedencodingexception e) {logger.error ("Encode URL failure", E); Throw NewRuntimeException (e); }        returnTarget; }

Logger

3. Definition of the configuration file

smart.framework.jdbc.driver=com.mysql.jdbc.Driversmart.framework.jdbc.url=jdbc:mysql://  Localhost:3306/demosmart.framework.jdbc.username=rootsmart.framework.jdbc.password=123456  Smart.framework.app.base_package=Com.nucsoft.chapter2smart.framework.app.jsp_path=/web-inf/view/ #表示静态资源文件的基础路径smart. Framework.app.asset_path=/asset/

smart.properties

/*** Provide the relevant configuration constant class * *@authorSolverpeng * @create 2016-06-23-14:31*/ Public Interfaceconfigconstant {String config_file= "Smart.properties"; String Jdbc_driver= "Smart.framework.jdbc.driver"; String Jdbc_url= "Smart.framework.jdbc.url"; String Jdbc_username= "Smart.framework.jdbc.username"; String Jdbc_password= "Smart.framework.jdbc.password"; String App_base_package= "Smart.framework.app.base_package"; String App_jsp_path= "Smart.framework.app.jsp_path"; String App_asset_path= "Smart.framework.app.asset_path";}

configconstant

/*** Properties File Helper class * *@authorSolverpeng * @create 2016-06-23-14:37*/ Public Final classConfigHelper {Private Static FinalProperties Confige_props =Propsutils.loadprops (Configconstant.config_file); /*** Get the JDBC driver*/     Public StaticString Getjdbcdriver () {returnpropsutils.getstring (Confige_props, configconstant.jdbc_driver); }    /*** Get JDBC URL*/     Public StaticString Getjdbcurl () {returnpropsutils.getstring (Confige_props, Configconstant.jdbc_url); }    /*** Get JDBC user name*/     Public StaticString Getjdbcusername () {returnpropsutils.getstring (Confige_props, configconstant.jdbc_username); }    /*** Get JDBC password*/     Public StaticString Getjdbcpassword () {returnpropsutils.getstring (Confige_props, Configconstant.jdbc_password); }    /*** Get app Base package name*/     Public StaticString getappbasepackage () {returnpropsutils.getstring (Confige_props, configconstant.app_base_package); }    /*** Get app JSP path*/     Public StaticString Getappjsppath () {returnPropsutils.getstring (Confige_props, Configconstant.app_jsp_path, "/web-inf/view/"); }    /*** Get application static resource path*/     Public StaticString Getappassetpath () {returnPropsutils.getstring (Confige_props, Configconstant.app_asset_path, "/asset/"); }}

ConfigHelper

Architecture Adventure-learned knowledge