[JAVA] Initial settings until S2Dao can be used

dicon file settings

Create dicon file to register dao interface in container The included dao.dicon is a dicon file that exists in s2-dao-1.0.49.jar

Specify the class of dao interface to be registered as a component in addClassPattern.

MySQL.dicon (any file name is OK)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//SEASAR//DTD S2Container 2.4//EN"
"http://www.seasar.org/dtd/components24.dtd">
<components>
    <include path="dao.dicon"/>

    <component name="traceInterceptor" class="org.seasar.framework.aop.interceptors.TraceInterceptor"/>

    <component class="org.seasar.framework.container.autoregister.FileSystemComponentAutoRegister">
      <property name="autoNaming">
        <component class="org.seasar.framework.container.autoregister.DefaultAutoNaming"/>
      </property>
      <initMethod name="addClassPattern">
        <arg>"org.seasar.sastruts.example.dao"</arg>
        <arg>".*Dao"</arg>
      </initMethod>
    </component>

    <component class="org.seasar.framework.container.autoregister.AspectAutoRegister">
      <property name="interceptor">dao.interceptor</property>
      <initMethod name="addClassPattern">
        <arg>"org.seasar.sastruts.example.dao"</arg>
        <arg>".*Dao"</arg>
      </initMethod>
    </component>

</components>

Specify the dicon file created above in app.dicon

app.dicon

  <include path="MySQL.dicon"/>

mysql settings and S2Dao component registration in jdbc.dicon User name and password are set appropriately

jdbc.dicon

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//SEASAR//DTD S2Container 2.4//EN"
	"http://www.seasar.org/dtd/components24.dtd">
<components namespace="jdbc">
	<include path="jta.dicon"/>

    <component name="resultSetFactory" class="org.seasar.dao.pager.PagerResultSetFactoryWrapper">
      <arg>
        <component class="org.seasar.extension.jdbc.impl.BasicResultSetFactory"/>
      </arg>
      <property name="useScrollCursor">true</property>
    </component>
    <component class="org.seasar.extension.jdbc.impl.ConfigurableStatementFactory">
      <arg>
        <component class="org.seasar.dao.pager.PagerStatementFactory"/>
      </arg>
      <property name="fetchSize">100</property>
    </component>

	<component name="xaDataSource"
		class="org.seasar.extension.dbcp.impl.XADataSourceImpl">
		<property name="driverClassName">
			"com.mysql.cj.jdbc.Driver"
		</property>
		<property name="URL">
			"jdbc:mysql://localhost:3306/sastrutsdb?characterEncoding=UTF-8&amp;characterSetResults=UTF-8"
		</property>
		<property name="user">"sa"</property>
		<property name="password">"password"</property>
	</component>

	<component name="connectionPool"
		class="org.seasar.extension.dbcp.impl.ConnectionPoolImpl">
		<property name="timeout">600</property>
		<property name="maxPoolSize">10</property>
		<property name="allowLocalTx">true</property>
		<destroyMethod name="close"/>
	</component>

	<component name="DataSource"
		class="org.seasar.extension.dbcp.impl.DataSourceImpl"
	/>

</components>

This completes the settings. The rest will be implemented.

Implementation

Entity creation

Balance

@Entity
@Table(name = "sample")
public class Balance {
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	public int id;

	@Column(name = "amount", nullable = false, unique = false)
	public long amount;
	
	@Column(name = "name", nullable = false, unique = false)
	public String name;

	@Column(name = "created_at", nullable = false, unique = false)
	@Temporal(TemporalType.DATE)
	public Date createdAt;

	@Column(name = "updated_at", nullable = true, unique = false)
	@Temporal(TemporalType.DATE)
	public Date updatedAt;

	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append("id:").append(id);
		sb.append("name:").append(name);
		sb.append("created_ad:").append(createdAt);
		sb.append("updated_ad:").append(updatedAt);
		return sb.toString();
	}
}

Action creation

BalanceAction

public class BalanceAction {

	@Binding
	BalanceService balanceService;

	@Execute(validator=false)
	public String index() {
		List<Balance> balanceList = balanceService.findAll();
		System.out.println("BALANCE_SIZE:" + balanceList.size());
		StringBuilder responseText = new StringBuilder();

		for (Balance balance : balanceList) {
			responseText.append(balance.toString() + "\r\n");
		}
		ResponseUtil.write(responseText.toString(), "text/html", "UTF-8");
		return null;
	}
}

Service creation

Binding Dao file here

BalanceService

public class BalanceService {

	@Binding
	BalanceDao balanceDao;

	public List<Balance> findAll() {
		return balanceDao.findAll();
	}
}

Dao interface creation

BalanceDao

@S2Dao(bean = Balance.class)
public interface BalanceDao {
	public List<Balance> findAll();
}

Run

$ curl "localhost:8080/sastruts/balance/"
id:1name:Taro Tanaka created_ad:2019-05-03 19:25:33.0updated_ad:null
id:2name:Hanako Sato created_ad:2019-05-03 23:48:40.0updated_ad:null

I was able to get the data safely.

reference

Introduction to Seasar2 S2Dao S2Dao Reference