例如要注入下列参数：

dyn.spring.datasources[0].name=branchta

dyn.spring.datasources[0].driverClassName=oracle.jdbc.OracleDriver

dyn.spring.datasources[0].url=jdbc:oracle:thin:@IP:1521:ora11g

dyn.spring.datasources[0].username=scott

dyn.spring.datasources[0].password=tiger

dyn.spring.datasources[1].name=ta4

dyn.spring.datasources[1].driverClassName=oracle.jdbc.OracleDriver

dyn.spring.datasources[1].url=jdbc:oracle:thin:@IP:1521:ora11g

dyn.spring.datasources[1].username=hr

dyn.spring.datasources[1].password=hr

这样，通过结合RootBeanDefinition以及DefaultListableBeanFactory相关接口，就可以纯编程式动态创建bean，而无需修改xml或者配置bean，达到纯动态的目的。

但是网上的例子似乎都是注入string类型的list，经测试，只要将datasources包含的类型定义为public即可，如下：

package com.XX.XXX.datasource;import java.util.List;import org.springframework.boot.context.properties.ConfigurationProperties;import org.springframework.context.annotation.PropertySource;@ConfigurationProperties(prefix="dyn.spring")@PropertySource("classpath:jrescloud.properties")public class DynamicDataSourceConfig {        private List
     
       datasources;        public static class DataSource {        private String name;        private String driverClassName;        private String url;        private String username;        private String password;        private String maxActive;        private String maxIdle;        private String maxWait;        private String validationQuery;        private String defaultAutoCommit;        private String connectionInitSqls;                public String getName() {            return name;        }        public void setName(String name) {            this.name = name;        }        public String getDriverClassName() {            return driverClassName;        }        public void setDriverClassName(String driverClassName) {            this.driverClassName = driverClassName;        }        public String getUrl() {            return url;        }        public void setUrl(String url) {            this.url = url;        }        public String getUsername() {            return username;        }        public void setUsername(String username) {            this.username = username;        }        public String getPassword() {            return password;        }        public void setPassword(String password) {            this.password = password;        }        public String getMaxActive() {            return maxActive;        }        public void setMaxActive(String maxActive) {            this.maxActive = maxActive;        }        public String getMaxIdle() {            return maxIdle;        }        public void setMaxIdle(String maxIdle) {            this.maxIdle = maxIdle;        }        public String getMaxWait() {            return maxWait;        }        public void setMaxWait(String maxWait) {            this.maxWait = maxWait;        }        public String getValidationQuery() {            return validationQuery;        }        public void setValidationQuery(String validationQuery) {            this.validationQuery = validationQuery;        }        public String getDefaultAutoCommit() {            return defaultAutoCommit;        }        public void setDefaultAutoCommit(String defaultAutoCommit) {            this.defaultAutoCommit = defaultAutoCommit;        }        public String getConnectionInitSqls() {            return connectionInitSqls;        }        public void setConnectionInitSqls(String connectionInitSqls) {            this.connectionInitSqls = connectionInitSqls;        }    }    public List
      
        getDatasources() {        return datasources;    }    public void setDatasources(List
       
         datasources) {        this.datasources = datasources;    }}
       
      
     

这样就可以注入了。。。。。：）