我在项目中配置了以下c3p0设置。但是在执行jar文件时，我发现＆＃34;没有可写属性＆＃34;。请告诉我如何解决这个问题。
配置： -
dataSource.setClassName("com.mchange.v2.c3p0.ComboPooledDataSource");
dataSource.getDriverProperties().setProperty("driverClass", properties.getProperty("jdbc.driver"));
dataSource.setUniqueName(properties.getProperty("jbpm.uniquename"));
dataSource.setMaxPoolSize(Integer.parseInt(properties.getProperty("jbpm.max")));
dataSource.setAllowLocalTransactions(true);
dataSource.getDriverProperties().setProperty("URL", properties.getProperty("jbpm.url"));
dataSource.getDriverProperties().setProperty("user", properties.getProperty("jbpm.username"));
dataSource.getDriverProperties().setProperty("password", properties.getProperty("jbpm.password"));
dataSource.getDriverProperties().setProperty("acquireIncrement", properties.getProperty("jdbc.acquireincrement"));
dataSource.getDriverProperties().setProperty("preferredTestQuery", properties.getProperty("jdbc.preferredtestquery"));
dataSource.getDriverProperties().setProperty("breakAfterAcquireFailure", properties.getProperty("jdbc.breakafteracquirefailure"));
dataSource.getDriverProperties().setProperty("acquireRetryAttempts", properties.getProperty("jdbc.acquireretryattempts"));
dataSource.getDriverProperties().setProperty("acquireRetryDelay", properties.getProperty("jdbc.acquireretrydelay"));
dataSource.getDriverProperties().setProperty("loginTimeout", properties.getProperty("jdbc.logintimeout"));
dataSource.getDriverProperties().setProperty("idleConnectionTestPeriod", properties.getProperty("jdbc.dleconnectiontestperiod"));
dataSource.getDriverProperties().setProperty("maxPoolSize", properties.getProperty("jdbc.maxpoolsize"));
dataSource.getDriverProperties().setProperty("minPoolSize", properties.getProperty("jdbc.minpoolsize"));
错误日志： -
bitronix.tm.resource.ResourceConfigurationException: cannot create JDBC datasource named java:jboss/datasources/DS
at bitronix.tm.resource.jdbc.PoolingDataSource.init(PoolingDataSource.java:80)
at com.tnq.messageq.DataSource.init(DataSource.java:60)
at com.tnq.messageq.IntegrationConsumer.main(IntegrationConsumer.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.simontuffs.onejar.Boot.run(Boot.java:340)
at com.simontuffs.onejar.Boot.main(Boot.java:166)
Caused by: bitronix.tm.utils.PropertyException: no writeable property 'URL' in class 'com.mchange.v2.c3p0.ComboPooledDataSource'
at bitronix.tm.utils.PropertyUtils.getSetter(PropertyUtils.java:318)
at bitronix.tm.utils.PropertyUtils.setDirectProperty(PropertyUtils.java:217)
at bitronix.tm.utils.PropertyUtils.setProperty(PropertyUtils.java:83)
at bitronix.tm.resource.common.XAPool.createXAFactory(XAPool.java:314)
at bitronix.tm.resource.common.XAPool.<init>(XAPool.java:63)
at bitronix.tm.resource.jdbc.PoolingDataSource.buildXAPool(PoolingDataSource.java:89)
at bitronix.tm.resource.jdbc.PoolingDataSource.init(PoolingDataSource.java:76)
感谢您对此进行调查..
答案 0 :(得分：1)
ComboPooledDataSource有一个名为JdbcUrl.Hence的属性，您可以尝试使用它而不是url。
dataSource.getDriverProperties().setProperty("jdbcUrl, properties.getProperty("jbpm.url"));
希望这有帮助。
答案 1 :(得分：0)
网址问题已解决。但在那之后，我发现无法找到名字的绑定对象＆＃39;。请检查并告诉我。
对于c3p0迁移，我更改了PoolingDataSource＆＃39;到了＆＃39; ComboPooledDataSource＆＃39;，之后我在init方法中配置了以下设置。
<强>代码： -
public static void init() throws Exception {
setPropertyMap();
properties = new Properties();
FileInputStream fileInput = new FileInputStream(new File("/home/data/settings."+map.get(System.getenv("spring_profiles_active"))+".properties"));
properties.load(fileInput);
ComboPooledDataSource dataSource = new ComboPooledDataSource();
dataSource.setDriverClass("com.mchange.v2.c3p0.ComboPooledDataSource");
dataSource.setJdbcUrl(properties.getProperty("jbpm.url"));
dataSource.setUser(properties.getProperty("jbpm.username"));
dataSource.setPassword(properties.getProperty("jbpm.password"));
dataSource.setAcquireIncrement(Integer.parseInt(properties.getProperty("jdbc.acquireincrement")));
dataSource.setAcquireRetryDelay(Integer.parseInt(properties.getProperty("jdbc.acquireretrydelay")));
dataSource.setIdleConnectionTestPeriod(Integer.parseInt(properties.getProperty("jdbc.dleconnectiontestperiod")));
dataSource.setMaxPoolSize(Integer.parseInt(properties.getProperty("jdbc.maxpoolsize")));
dataSource.setMinPoolSize(Integer.parseInt(properties.getProperty("jdbc.minpoolsize")));
}
错误日志： -
Caused by: org.hibernate.HibernateException: Could not find datasource
at org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:79)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:143)
at org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:51)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:90)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2863)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2859)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1870)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:906)
... 68 more
Caused by: javax.naming.NameNotFoundException: unable to find a bound object at name 'java:jboss/datasources/DS'
at bitronix.tm.jndi.BitronixContext.lookup(BitronixContext.java:83)
at javax.naming.InitialContext.lookup(InitialContext.java:411)
at org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:75)
... 75 more
JarClassLoader: Warning: com/mchange/Debug.class in lib/c3p0-0.9.5.1.jar is
<强>的persistence.xml： -
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<persistence version="1.0"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd
http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm_1_0.xsd"
xmlns:orm="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="org.jbpm.persistence.jpa.testcon">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:jboss/datasources/DS</jta-data-source>
<mapping-file>META-INF/JBPMorm.xml</mapping-file>
<class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class>
<class>org.drools.persistence.info.SessionInfo</class>
<class>org.drools.persistence.info.WorkItemInfo</class>
<class>org.jbpm.process.audit.ProcessInstanceLog</class>
<properties>
<property name="hibernate.max_fetch_depth" value="3"/>
<!--<property name="hibernate.hbm2ddl.auto" value="validate" />-->
<property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.BTMTransactionManagerLookup" />
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
</properties>
</persistence-unit>
</persistence>
<强> web.xml中： -
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext.xml
</param-value>
</context-param>
<filter>
<filter-name>CORS</filter-name>
<filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>
<init-param>
<param-name>cors.supportedMethods</param-name>
<param-value>GET, POST, HEAD, PUT, DELETE, OPTIONS</param-value>
</init-param>
<init-param>
<param-name>cors.allowOrigin</param-name>
<param-value>*</param-value>
</init-param>
<init-param>
<param-name>cors.supportedHeaders</param-name>
<param-value>Origin, X-Requested-With, Content-Type</param-value>
</init-param>
<init-param>
<param-name>cors.allowGenericHttpRequests</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>cors.exposedHeaders</param-name>
<param-value>Date</param-value>
</init-param>
</filter>
<filter>
<filter-name>hibernateFilter</filter-name>
<filter-class>com.test.hibernate.HibernateFilter</filter-class>
<init-param>
<param-name>singleSession</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>hibernateFilter</filter-name>
<url-pattern>*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
<dispatcher>ERROR</dispatcher>
</filter-mapping>
<filter-mapping>
<filter-name>CORS</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>Test</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Test</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- To be used only when we need to deploy multiple wars in one container -->
<env-entry>
<env-entry-name>spring.profiles.active</env-entry-name>
<env-entry-type>java.lang.String</env-entry-type>
<env-entry-value>testuat</env-entry-value>
</env-entry>
</web-app>
主程序调用init方法。
public static void main(String[] argv) {
try {
DataSource.init();
applicationContext = new ClassPathXmlApplicationContext("classpath:/applicationContext.xml");
..........
}
catch (Exception e) {
e.printStackTrace();
log.error(e.getStackTrace());
}
}
感谢您对此进行调查..