JSON字符串转换object错误：MorphDynaBean cannot be cast to com.softright.bean.TestBean

错误：MorphDynaBean cannot be cast to com.softright.bean.TestBean

解决方法：

在JSONObject.toBean的时候

如果转换的类中有集合,可以先定义Map<String, Class> classMap = new HashMap<String, Class>();

在classMap中put你要转换的类中的集合名,像:classMap.put("data", StoDataInfo.class);

当然也可以put一个集合类("data",Map.class)

然后在toBean()的时候把参数加上, 像:ShenTongInfo stInfo=(ShenTongInfo) JSONObject.toBean(o, ShenTongInfo.class, classMap);

具体实例

代码如下

复制代码

public class JsonConvertorDemo {

public static void main(String[] args) {
B b1 = new B("b1");
Map<String, B> bMap = new HashMap<String, B>();
bMap.put("key1", b1);
A a1 = new A(bMap);

JSONObject jsonObject = JSONObject.fromObject(a1);
String json = jsonObject.toString();
jsonObject = JSONObject.fromObject(json);

Map<String, Class> classMap = new HashMap<String, Class>();
classMap.put("bMap", Map.class);
a1 = (A) JSONObject.toBean(jsonObject, A.class, classMap);

bMap = a1.getbMap();
System.out.println(bMap.get("key1").getB1());
}
}

public class A {
private Map<String, B> bMap = new HashMap<String, B>();
public A() {}
public A(Map<String, B> bMap) {
this.bMap = bMap;
}
public Map<String, B> getbMap() {
return bMap;
}
public void setbMap(Map<String, B> bMap) {
this.bMap = bMap;
}
}

public class B {
private String b1;
public B() {}
public B(String b1) {
this.b1 = b1;
}
public String getB1() {
return b1;
}
public void setB1(String b1) {
this.b1 = b1;
}
}

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