出现这个错误的原因是因为引入的json jar包太老了

       <dependency>

      <groupId>org.json</groupId>

      <artifactId>json</artifactId>

      <version>20160810</version>

    </dependency>

如图，把pom.xml文件中的引用改成我上面这个就行了，也就会把原来的 <version>20090211</version>

改成<version>20160810</version>

，解决了就记得采纳哦

package mabentest.test;

import java.util.Arrays;

//java Bean 构建Json

public class People {

private String name;

private String[] major;

private boolean has_girlfriend;

private double age;

private Object house;

private String birthday;

private String comment;

private String school;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

/**

* @return major

*/

public String[] getMojor() {

return major;

}

/**

* @param mojor 要设置的 mojor

*/

public void setMojor(String[] major) {

this.major = major;

}

/**

* @return has_girlfriend

*/

public boolean isHas_girlfriend() {

return has_girlfriend;

}

/**

* @param has_girlfriend 要设置的 has_girlfriend

*/

public void setHas_girlfriend(boolean has_girlfriend) {

this.has_girlfriend = has_girlfriend;

}

/**

* @return age

*/

public double getAge() {

return age;

}

/**

* @param age 要设置的 age

*/

public void setAge(double age) {

this.age = age;

}

/**

* @return house

*/

public Object getHouse() {

return house;

}

/**

* @param house 要设置的 house

*/

public void setHouse(Object house) {

this.house = house;

}

/**

* @return birthday

*/

public String getBirthday() {

return birthday;

}

/**

* @param birthday 要设置的 birthday

*/

public void setBirthday(String birthday) {

this.birthday = birthday;

}

/**

* @return comment

*/

public String getComment() {

return comment;

}

/**

* @param comment 要设置的 comment

*/

public void setComment(String comment) {

this.comment = comment;

}

/* （非 Javadoc）

* @see java.lang.Object#toString()

*/

public String getSchool() {

return school;

}

public void setSchool(String school) {

this.school = school;

}

/* （非 Javadoc）

* @see java.lang.Object#toString()

*/

@Override

public String toString() {

return "People [name=" + name + ", major=" + Arrays.toString(major) + ", has_girlfriend=" + has_girlfriend

+ ", age=" + age + ", house=" + house + ", birthday=" + birthday + ", comment=" + comment + ", school="

+ school + "]";

}

}