SpringBoot static修饰的字段/方法如何获取application.yml配置

刺骨的言语ヽ痛彻心扉 2021-12-03 19:43 347阅读 0赞

SpringBoot的application.yml一种特殊的应用场景，一般我们获取application.yml的配置文件只要@Value就可以获取到值了，但是如果是static修饰的字段肯定就不能用这种方法了

方法一

private static String systemUrl;

//static静态方法获取配置文件
        @Value("${xx.xx}")
        public  void setSystemUrl(String systemUrl) {
            this.systemUrl = systemUrl;
        }

方法二

首先我们在static修饰的字段添加set方法，然后再@Configuration配置类中进行初始化set值进去。下面是我们@Configuration配置类代码

@Component
    @ConfigurationProperties(prefix = "spring.datasource")
    public class DruidConfigProperties {
        
    
        private int initialSize;
        private int minIdle;
        private int maxActive;
        private int maxWait;
        private int timeBetweenEvictionRunsMillis;
        private int minEvictableIdleTimeMillis;
        private String validationQuery;
        private boolean testWhileIdle;
        private boolean testOnBorrow;
        private boolean testOnReturn;
        private boolean poolPreparedStatements;
        private int maxPoolPreparedStatementPerConnectionSize;
        private String filters;
        private String connectionProperties;
        private boolean useGlobalDataSourceStat;
    
        public int getInitialSize() {
        
            return initialSize;
        }
    
        public void setInitialSize(int initialSize) {
        
            this.initialSize = initialSize;
        }
    
        public int getMinIdle() {
        
            return minIdle;
        }
    
        public void setMinIdle(int minIdle) {
        
            this.minIdle = minIdle;
        }
    
        public int getMaxActive() {
        
            return maxActive;
        }
    
        public void setMaxActive(int maxActive) {
        
            this.maxActive = maxActive;
        }
    
        public int getMaxWait() {
        
            return maxWait;
        }
    
        public void setMaxWait(int maxWait) {
        
            this.maxWait = maxWait;
        }
    
        public int getTimeBetweenEvictionRunsMillis() {
        
            return timeBetweenEvictionRunsMillis;
        }
    
        public void setTimeBetweenEvictionRunsMillis(int timeBetweenEvictionRunsMillis) {
        
            this.timeBetweenEvictionRunsMillis = timeBetweenEvictionRunsMillis;
        }
    
        public int getMinEvictableIdleTimeMillis() {
        
            return minEvictableIdleTimeMillis;
        }
    
        public void setMinEvictableIdleTimeMillis(int minEvictableIdleTimeMillis) {
        
            this.minEvictableIdleTimeMillis = minEvictableIdleTimeMillis;
        }
    
        public String getValidationQuery() {
        
            return validationQuery;
        }
    
        public void setValidationQuery(String validationQuery) {
        
            this.validationQuery = validationQuery;
        }
    
        public boolean isTestWhileIdle() {
        
            return testWhileIdle;
        }
    
        public void setTestWhileIdle(boolean testWhileIdle) {
        
            this.testWhileIdle = testWhileIdle;
        }
    
        public boolean isTestOnBorrow() {
        
            return testOnBorrow;
        }
    
        public void setTestOnBorrow(boolean testOnBorrow) {
        
            this.testOnBorrow = testOnBorrow;
        }
    
        public boolean isTestOnReturn() {
        
            return testOnReturn;
        }
    
        public void setTestOnReturn(boolean testOnReturn) {
        
            this.testOnReturn = testOnReturn;
        }
    
        public boolean isPoolPreparedStatements() {
        
            return poolPreparedStatements;
        }
    
        public void setPoolPreparedStatements(boolean poolPreparedStatements) {
        
            this.poolPreparedStatements = poolPreparedStatements;
        }
    
        public int getMaxPoolPreparedStatementPerConnectionSize() {
        
            return maxPoolPreparedStatementPerConnectionSize;
        }
    
        public void setMaxPoolPreparedStatementPerConnectionSize(int maxPoolPreparedStatementPerConnectionSize) {
        
            this.maxPoolPreparedStatementPerConnectionSize = maxPoolPreparedStatementPerConnectionSize;
        }
    
        public String getFilters() {
        
            return filters;
        }
    
        public void setFilters(String filters) {
        
            this.filters = filters;
        }
    
        public String getConnectionProperties() {
        
            return connectionProperties;
        }
    
        public void setConnectionProperties(String connectionProperties) {
        
            this.connectionProperties = connectionProperties;
        }
    
        public boolean isUseGlobalDataSourceStat() {
        
            return useGlobalDataSourceStat;
        }
    
        public void setUseGlobalDataSourceStat(boolean useGlobalDataSourceStat) {
        
            this.useGlobalDataSourceStat = useGlobalDataSourceStat;
        }
    
        @Bean
        public int initStatic(){
        
            DataSourceUtil.setProperties(this);
            return 0;
        }
    
        @Override
        public String toString() {
        
            return "DruidConfigProperties{" +
                    "initialSize=" + initialSize +
                    ", minIdle=" + minIdle +
                    ", maxActive=" + maxActive +
                    ", maxWait=" + maxWait +
                    ", timeBetweenEvictionRunsMillis=" + timeBetweenEvictionRunsMillis +
                    ", minEvictableIdleTimeMillis=" + minEvictableIdleTimeMillis +
                    ", validationQuery='" + validationQuery + '\'' +
                    ", testWhileIdle=" + testWhileIdle +
                    ", testOnBorrow=" + testOnBorrow +
                    ", testOnReturn=" + testOnReturn +
                    ", poolPreparedStatements=" + poolPreparedStatements +
                    ", maxPoolPreparedStatementPerConnectionSize=" + maxPoolPreparedStatementPerConnectionSize +
                    ", filters='" + filters + '\'' +
                    ", connectionProperties='" + connectionProperties + '\'' +
                    ", useGlobalDataSourceStat=" + useGlobalDataSourceStat +
                    '}';
        }
    }

![1068487-20190606163515598-1213632399.png][]

参考：[https://blog.csdn.net/linzhiqiang0316/article/details/81516558][https_blog.csdn.net_linzhiqiang0316_article_details_81516558]

转载于:https://www.cnblogs.com/chancy/p/10985795.html

[1068487-20190606163515598-1213632399.png]: /images/20211203/097179fd773b4e6ebfb054a77b75c383.png
[https_blog.csdn.net_linzhiqiang0316_article_details_81516558]: https://blog.csdn.net/linzhiqiang0316/article/details/81516558