不兼容类型；不能将byte[]转换为字节。

Question

(databaseForm.java)

公共类databaseForm扩展javax.swing.JFrame {

jLabelCloseMouseClicked(java.awt.event.MouseEvent *创建新的表单databaseForm */ String imgPth = null；公共databaseForm() { initComponents()；}私有的无效databaseForm evt) { // TODO在这里添加处理代码: System.exit(0)；){ // TODO在这里添加您的处理代码: jLabelMinMouseClicked(java.awt.event.MouseEvent (JFrame.ICONIFIED)；在这里添加处理代码: Myfunc = new ()；imgPth = mf.browseImage(jLabelDataPic)；System.out.println(imgPth)；在这里添加您的处理代码: snumber = jTextFieldSNumber.getText()；String = jTextFieldFName.getText()；String = jTextFieldLName.getText()；String = jComboBoxGender.getSelectedItem().toString()；String = jComboBoxCourse.getSelectedItem().toString()；字符串年= jComboBoxYear.getSelectedItem().toString()；String节= jTextAreaAddress.getText();

 byte[] img = null;     try {                  Path pth = Paths.get(imgPth);         img = Files.readAllBytes(pth);

 data d = new data(0, snumber, fname, lname, gender, course, year, section, img, address, 0);      }   

(data.java)

公共类数据{

私有字符串SNumber；私有字符串FName；私有字符串LName；私有字符串性别；私有字符串课程；私有字符串年；私有字符串节；私有字节图像；私有字符串地址；私有int uid；// Alt + Insert //以生成构造函数&getter& setters公共数据() {}公共数据( int cid，字符串SNumber，字符串FName，字符串LName，字符串性别，字符串过程，字符串年，字符串节，字节图像，

字符串地址，int ){ this.cid = cid；this.SNumber = SNumber；this.FName = FName；this.LName = LName；this.Gender =性别；this.Course = Course；this.Year =this.Year= Section；this.Image = Image；this.Address = Address；this.uid = uid；}

公共int getCid() {返回cid；} public void setCid(int cid) { this.cid =this.cid；}公共字符串getSNumber() {返回SNumber；}公共空setSNumber(String SNumber) { this.SNumber = SNumber；}公共字符串getFName() {返回FName；} public void setFName(String FName) { this.FName = FName；}公共字符串getLName() {返回LName；} public void setLName(String LName) { this.LName = LName；}公共字符串getGender() {返回性别；} public void setGender(字符串性别){ this.Gender =性别；}公共字符串getCourse() {返回过程；}公共空setCourse(字符串过程){ this.Course =LName；}公共字符串getYear() {返回年；}公共空setYear(字符串年){ this.Year =年份；}公共字符串getSection() {返回节；}公共空setSection(字符串段){ this.Section =节；}公共字节getImage() {返回图像；}公共空setImage(字节图像){ this.Image =图像；}公共字符串getAddress() {返回地址；}公共空setAddress(字符串地址){ this.Address =地址；}公共int getUid() {返回地址；} setUid(int uid) { this.uid = uid；} }

Answer 1

在你的构造函数中，

public data(int cid, String SNumber, String FName, String LName, String Gender, String Course, String Year, String Section, byte Image,String Address, int uid)

您期望Image为字节类型，但传递字节数组byte[] img = null;将数据类中Image属性的参数类型更改为byte[]。