clazzToJsonDefault java 实体 to json 字符串

输出

{
        "id": this.id,
"questionType": this.questionType,
"subjectId": this.subjectId,
"score": this.score,
"gradeLevel": this.gradeLevel,
"difficult": this.difficult,
"infoTextContentId": this.infoTextContentId,
"createUser": this.createUser,
"status": this.status,
"createTime": this.createTime,
"deleted": this.deleted,
"correct": this.correct,
    }


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D:\proj\springBoot\exam-sys-db2\src\main\java\top\starp\util\JsonUtil.java

    public   static  String  clazzToJsonDefault(Class clazz) throws JsonMappingException {
        //        org.codehaus.jackson.map.ObjectMapper mapper = new ObjectMapper();
        ObjectMapper mapper = new ObjectMapper();
        //There are other configuration options you can set.  This is the one I needed.
//        mapper.configure(SerializationConfig.Feature.WRITE_ENUMS_USING_TO_STRING, true);
        mapper.configure(WRITE_ENUMS_USING_TO_STRING, true);

        JsonSchema schema = mapper.generateJsonSchema(clazz);
//        Spring接收枚举类型_言玉gz的博客-CSDN博客_spring 枚举
//        https://blog.csdn.net/u010811939/article/details/106671017/
        ObjectNode schemaNode = schema.getSchemaNode();
//        JsonNode type = schemaNode.get(0);
        是type
//
//        JsonNode type1 = schemaNode.get("type");
        JsonNode properties = schemaNode.get("properties");
//        System.out.println("properties");
//        System.out.println(properties);
        Iterator<String> stringIterator = properties.fieldNames();
//        System.out.println("stringIterator");
//        System.out.println(stringIterator);
        String jsonStr="{\n" +
                "        #jsonBody#"+
                "    }";
        StringBuilder jsonBody= new StringBuilder();
        while (stringIterator.hasNext()) {
            String next = stringIterator.next();
            System.out.println(next);
            String line=  "\"#fieldName#\": this.#fieldName#,";
//            String line=  next+ "  : "+" '',  ";
            line= line.replace("#fieldName#",next);
            jsonBody.append(line).append("\n");
        }
        jsonStr=  jsonStr.replace("#jsonBody#", jsonBody.toString());
//        for (JsonNode property : properties) {
//            System.out.println(property);
            property.get
//        }
//        System.out.println("jsonNodeVal");
//        System.out.println(jsonNodeVal);
//        for (JsonNode jsonNode : jsonNodeVal) {
            jsonNode.get
//            System.out.println(jsonNode);
//        }
//        JsonNode jsonNode = schemaNode.get(0);
//        System.out.println(jsonNode);
        return jsonStr;
    }

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String jsonDefault = JsonUtil.clazzToJsonDefault(Question.class);
System.out.println(jsonDefault);

package com.starp.exam;

import java.util.Date;

public class Question {
    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.id
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Integer id;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.question_type
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Integer questionType;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.subject_id
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Integer subjectId;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.score
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Integer score;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.grade_level
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Integer gradeLevel;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.difficult
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Integer difficult;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.info_text_content_id
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Integer infoTextContentId;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.create_user
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Integer createUser;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.status
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Integer status;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.create_time
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Date createTime;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.deleted
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private Boolean deleted;

    /**
     *
     * This field was generated by MyBatis Generator.
     * This field corresponds to the database column t_question.correct
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    private String correct;

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.id
     *
     * @return the value of t_question.id
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Integer getId() {
        return id;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.id
     *
     * @param id the value for t_question.id
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setId(Integer id) {
        this.id = id;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.question_type
     *
     * @return the value of t_question.question_type
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Integer getQuestionType() {
        return questionType;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.question_type
     *
     * @param questionType the value for t_question.question_type
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setQuestionType(Integer questionType) {
        this.questionType = questionType;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.subject_id
     *
     * @return the value of t_question.subject_id
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Integer getSubjectId() {
        return subjectId;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.subject_id
     *
     * @param subjectId the value for t_question.subject_id
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setSubjectId(Integer subjectId) {
        this.subjectId = subjectId;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.score
     *
     * @return the value of t_question.score
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Integer getScore() {
        return score;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.score
     *
     * @param score the value for t_question.score
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setScore(Integer score) {
        this.score = score;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.grade_level
     *
     * @return the value of t_question.grade_level
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Integer getGradeLevel() {
        return gradeLevel;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.grade_level
     *
     * @param gradeLevel the value for t_question.grade_level
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setGradeLevel(Integer gradeLevel) {
        this.gradeLevel = gradeLevel;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.difficult
     *
     * @return the value of t_question.difficult
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Integer getDifficult() {
        return difficult;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.difficult
     *
     * @param difficult the value for t_question.difficult
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setDifficult(Integer difficult) {
        this.difficult = difficult;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.info_text_content_id
     *
     * @return the value of t_question.info_text_content_id
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Integer getInfoTextContentId() {
        return infoTextContentId;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.info_text_content_id
     *
     * @param infoTextContentId the value for t_question.info_text_content_id
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setInfoTextContentId(Integer infoTextContentId) {
        this.infoTextContentId = infoTextContentId;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.create_user
     *
     * @return the value of t_question.create_user
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Integer getCreateUser() {
        return createUser;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.create_user
     *
     * @param createUser the value for t_question.create_user
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setCreateUser(Integer createUser) {
        this.createUser = createUser;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.status
     *
     * @return the value of t_question.status
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Integer getStatus() {
        return status;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.status
     *
     * @param status the value for t_question.status
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setStatus(Integer status) {
        this.status = status;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.create_time
     *
     * @return the value of t_question.create_time
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Date getCreateTime() {
        return createTime;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.create_time
     *
     * @param createTime the value for t_question.create_time
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setCreateTime(Date createTime) {
        this.createTime = createTime;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.deleted
     *
     * @return the value of t_question.deleted
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public Boolean getDeleted() {
        return deleted;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.deleted
     *
     * @param deleted the value for t_question.deleted
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setDeleted(Boolean deleted) {
        this.deleted = deleted;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method returns the value of the database column t_question.correct
     *
     * @return the value of t_question.correct
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public String getCorrect() {
        return correct;
    }

    /**
     * This method was generated by MyBatis Generator.
     * This method sets the value of the database column t_question.correct
     *
     * @param correct the value for t_question.correct
     *
     * @mbg.generated Mon Nov 14 13:40:37 CST 2022
     */
    public void setCorrect(String correct) {
        this.correct = correct == null ? null : correct.trim();
    }
}
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