Example analysis on how to convert json string into java bean

This article mainly introduces the detailed explanation of json string conversion to java beans and the relevant information of the example code. Here is the example code to help everyone understand. Friends in need can refer to the following

Detailed explanation of json string conversion Add the following two libraries to the java bean and example code

pom:

<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 The definition is:

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;
  }   
}

The test case is:

ESMetaDataInfoIndex dataInfo = JSON.parseObject(json.toJSONString(),ESMetaDataInfoIndex .class);

The above is the detailed content of Example analysis on how to convert json string into java bean. For more information, please follow other related articles on the PHP Chinese website!