这篇文章主要介绍了详解json string转换为java bean及实例代码的相关资料,这里提供实例代码帮助大家理解,需要的朋友可以参考下
详解json string转换为java bean及实例代码
pom中添加如下两个库:
<dependency> <groupId>org.codehaus.jackson </groupId> <artifactId>jackson-core-asl</artifactId> <version>1.9.2</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.alibaba </groupId> <artifactId>fastjson</artifactId> <version>1.2.7</version> <scope>provided</scope> </dependency>
java bean的定义为:
package test.fastjson; import java.util.HashMap; import java.util.Map; import org.codehaus.jackson.annotate.JsonIgnoreProperties; import org.codehaus.jackson.annotate.JsonProperty; //简单地忽略掉从JSON(由于在应用中没有完全匹配的POJO)中获得的所有“多余的”属性 @JsonIgnoreProperties(ignoreUnknown = true) public class ESMetaDataInfoIndex { //改变某个成员属性所使用的JSON名称 @JsonProperty("tableStrategy") private String tableStrategy = null; @JsonProperty("indexName") private String indexName = null; @JsonProperty("topic") private String topic = null; @JsonProperty("nameSpace") private String nameSpace = null; @JsonProperty("extendAttr") private Map<String, String> extendAttr = new HashMap<String, String>(); @JsonProperty("type") private String type = null; @JsonProperty("ttl") private int ttl = 0; @JsonProperty("splitCol") private String splitCol = null; /** **/ public String getTableStrategy() { return tableStrategy; } public void setTableStrategy(String tableStrategy) { this.tableStrategy = tableStrategy; } /** **/ public String getIndexName() { return indexName; } public void setIndexName(String indexName) { this.indexName = indexName; } /** **/ public String getTopic() { return topic; } public void setTopic(String topic) { this.topic = topic; } /** **/ public String getNameSpace() { return nameSpace; } public void setNameSpace(String nameSpace) { this.nameSpace = nameSpace; } /** **/ public Map<String, String> getExtendAttr() { return extendAttr; } public void setExtendAttr(Map<String, String> extendAttr) { this.extendAttr = extendAttr; } /** **/ public String getType() { return type; } public void setType(String type) { this.type = type; } /** **/ public int getTtl() { return ttl; } public void setTtl(int ttl) { this.ttl = ttl; } /** **/ public String getSplitCol() { return splitCol; } public void setSplitCol(String splitCol) { this.splitCol = splitCol; } }
测试用例为:
ESMetaDataInfoIndex dataInfo = JSON.parseObject(json.toJSONString(),ESMetaDataInfoIndex .class);
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